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Finding the Fourth Proportional to 672,599, 1,006,406.40 and 539,074.28

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Solution

The fourth proportional to 672,599, 1,006,406.40 and 539,074.28 is: 806,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,599 : 1,006,406.40 = 539,074.28 : x
  2. Step 2: Convert to fraction form
    672,599/1,006,406.40 = 539,074.28/x
  3. Step 3: Cross multiply
    672,599x = 1,006,406.40 × 539,074.28
  4. Step 4: Simplify right side
    672,599x = 542,527,805,467.39
  5. Step 5: Solve for x
    x = 542,527,805,467.39/672,599
  6. Step 6: Final answer
    x = 806,614.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.