Home / 631,948.23-870,654.42-479,208.15

Finding the Fourth Proportional to 631,948.23, 870,654.42 and 479,208.15

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Solution

The fourth proportional to 631,948.23, 870,654.42 and 479,208.15 is: 660,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,948.23 : 870,654.42 = 479,208.15 : x
  2. Step 2: Convert to fraction form
    631,948.23/870,654.42 = 479,208.15/x
  3. Step 3: Cross multiply
    631,948.23x = 870,654.42 × 479,208.15
  4. Step 4: Simplify right side
    631,948.23x = 417,224,693,897.52
  5. Step 5: Solve for x
    x = 417,224,693,897.52/631,948.23
  6. Step 6: Final answer
    x = 660,219.74

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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.