Home / 498,940.17-688,538.10-284,080.32

Finding the Fourth Proportional to 498,940.17, 688,538.10 and 284,080.32

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Solution

The fourth proportional to 498,940.17, 688,538.10 and 284,080.32 is: 392,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,940.17 : 688,538.10 = 284,080.32 : x
  2. Step 2: Convert to fraction form
    498,940.17/688,538.10 = 284,080.32/x
  3. Step 3: Cross multiply
    498,940.17x = 688,538.10 × 284,080.32
  4. Step 4: Simplify right side
    498,940.17x = 195,600,123,780.19
  5. Step 5: Solve for x
    x = 195,600,123,780.19/498,940.17
  6. Step 6: Final answer
    x = 392,031.22

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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.