Home / 830,385.36-1,146,016.41-508,308.30

Finding the Fourth Proportional to 830,385.36, 1,146,016.41 and 508,308.30

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Solution

The fourth proportional to 830,385.36, 1,146,016.41 and 508,308.30 is: 701,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,385.36 : 1,146,016.41 = 508,308.30 : x
  2. Step 2: Convert to fraction form
    830,385.36/1,146,016.41 = 508,308.30/x
  3. Step 3: Cross multiply
    830,385.36x = 1,146,016.41 × 508,308.30
  4. Step 4: Simplify right side
    830,385.36x = 582,529,653,139.20
  5. Step 5: Solve for x
    x = 582,529,653,139.20/830,385.36
  6. Step 6: Final answer
    x = 701,517.25

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Half scale
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Double scale
Find fourth proportional to 830,386.36, 1,146,017.79 and 508,309.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.