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Finding the Fourth Proportional to 716,135.68, 988,417.92 and 454,322.24

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Solution

The fourth proportional to 716,135.68, 988,417.92 and 454,322.24 is: 627,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,135.68 : 988,417.92 = 454,322.24 : x
  2. Step 2: Convert to fraction form
    716,135.68/988,417.92 = 454,322.24/x
  3. Step 3: Cross multiply
    716,135.68x = 988,417.92 × 454,322.24
  4. Step 4: Simplify right side
    716,135.68x = 449,060,243,470.54
  5. Step 5: Solve for x
    x = 449,060,243,470.54/716,135.68
  6. Step 6: Final answer
    x = 627,060.28

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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.