Home / 830,378.36-1,146,006.80-508,301.30

Finding the Fourth Proportional to 830,378.36, 1,146,006.80 and 508,301.30

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Solution

The fourth proportional to 830,378.36, 1,146,006.80 and 508,301.30 is: 701,507.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,378.36 : 1,146,006.80 = 508,301.30 : x
  2. Step 2: Convert to fraction form
    830,378.36/1,146,006.80 = 508,301.30/x
  3. Step 3: Cross multiply
    830,378.36x = 1,146,006.80 × 508,301.30
  4. Step 4: Simplify right side
    830,378.36x = 582,516,746,248.84
  5. Step 5: Solve for x
    x = 582,516,746,248.84/830,378.36
  6. Step 6: Final answer
    x = 701,507.62

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Double scale
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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.