Home / 591,915.23-817,065.15-387,979.29

Finding the Fourth Proportional to 591,915.23, 817,065.15 and 387,979.29

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Solution

The fourth proportional to 591,915.23, 817,065.15 and 387,979.29 is: 535,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,915.23 : 817,065.15 = 387,979.29 : x
  2. Step 2: Convert to fraction form
    591,915.23/817,065.15 = 387,979.29/x
  3. Step 3: Cross multiply
    591,915.23x = 817,065.15 × 387,979.29
  4. Step 4: Simplify right side
    591,915.23x = 317,004,356,780.74
  5. Step 5: Solve for x
    x = 317,004,356,780.74/591,915.23
  6. Step 6: Final answer
    x = 535,557.02

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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.