Home / 830,478.30-1,146,041.10-508,187.40

Finding the Fourth Proportional to 830,478.30, 1,146,041.10 and 508,187.40

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Solution

The fourth proportional to 830,478.30, 1,146,041.10 and 508,187.40 is: 701,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,478.30 : 1,146,041.10 = 508,187.40 : x
  2. Step 2: Convert to fraction form
    830,478.30/1,146,041.10 = 508,187.40/x
  3. Step 3: Cross multiply
    830,478.30x = 1,146,041.10 × 508,187.40
  4. Step 4: Simplify right side
    830,478.30x = 582,403,646,902.14
  5. Step 5: Solve for x
    x = 582,403,646,902.14/830,478.30
  6. Step 6: Final answer
    x = 701,287.01

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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.