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Finding the Fourth Proportional to 437,565.30, 655,363.80 and 260,418.30

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Solution

The fourth proportional to 437,565.30, 655,363.80 and 260,418.30 is: 390,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,565.30 : 655,363.80 = 260,418.30 : x
  2. Step 2: Convert to fraction form
    437,565.30/655,363.80 = 260,418.30/x
  3. Step 3: Cross multiply
    437,565.30x = 655,363.80 × 260,418.30
  4. Step 4: Simplify right side
    437,565.30x = 170,668,726,677.54
  5. Step 5: Solve for x
    x = 170,668,726,677.54/437,565.30
  6. Step 6: Final answer
    x = 390,041.73

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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.