Home / 643,192.46-887,462.58-371,202.74

Finding the Fourth Proportional to 643,192.46, 887,462.58 and 371,202.74

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Solution

The fourth proportional to 643,192.46, 887,462.58 and 371,202.74 is: 512,177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,192.46 : 887,462.58 = 371,202.74 : x
  2. Step 2: Convert to fraction form
    643,192.46/887,462.58 = 371,202.74/x
  3. Step 3: Cross multiply
    643,192.46x = 887,462.58 × 371,202.74
  4. Step 4: Simplify right side
    643,192.46x = 329,428,541,343.47
  5. Step 5: Solve for x
    x = 329,428,541,343.47/643,192.46
  6. Step 6: Final answer
    x = 512,177.24

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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.