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Finding the Fourth Proportional to 716,026.72, 988,267.80 and 454,213.12

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Solution

The fourth proportional to 716,026.72, 988,267.80 and 454,213.12 is: 626,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,026.72 : 988,267.80 = 454,213.12 : x
  2. Step 2: Convert to fraction form
    716,026.72/988,267.80 = 454,213.12/x
  3. Step 3: Cross multiply
    716,026.72x = 988,267.80 × 454,213.12
  4. Step 4: Simplify right side
    716,026.72x = 448,884,200,833.54
  5. Step 5: Solve for x
    x = 448,884,200,833.54/716,026.72
  6. Step 6: Final answer
    x = 626,909.85

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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.