Home / 398,217.18-597,413.20-292,716.30

Finding the Fourth Proportional to 398,217.18, 597,413.20 and 292,716.30

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Solution

The fourth proportional to 398,217.18, 597,413.20 and 292,716.30 is: 439,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,217.18 : 597,413.20 = 292,716.30 : x
  2. Step 2: Convert to fraction form
    398,217.18/597,413.20 = 292,716.30/x
  3. Step 3: Cross multiply
    398,217.18x = 597,413.20 × 292,716.30
  4. Step 4: Simplify right side
    398,217.18x = 174,872,581,475.16
  5. Step 5: Solve for x
    x = 174,872,581,475.16/398,217.18
  6. Step 6: Final answer
    x = 439,138.72

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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.