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Finding the Fourth Proportional to 637,891.92, 880,286.76 and 351,405.36

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Solution

The fourth proportional to 637,891.92, 880,286.76 and 351,405.36 is: 484,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,891.92 : 880,286.76 = 351,405.36 : x
  2. Step 2: Convert to fraction form
    637,891.92/880,286.76 = 351,405.36/x
  3. Step 3: Cross multiply
    637,891.92x = 880,286.76 × 351,405.36
  4. Step 4: Simplify right side
    637,891.92x = 309,337,485,801.03
  5. Step 5: Solve for x
    x = 309,337,485,801.03/637,891.92
  6. Step 6: Final answer
    x = 484,937.14

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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.