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Finding the Fourth Proportional to 403,740.60, 605,610.90 and 366,342.90

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Solution

The fourth proportional to 403,740.60, 605,610.90 and 366,342.90 is: 549,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,740.60 : 605,610.90 = 366,342.90 : x
  2. Step 2: Convert to fraction form
    403,740.60/605,610.90 = 366,342.90/x
  3. Step 3: Cross multiply
    403,740.60x = 605,610.90 × 366,342.90
  4. Step 4: Simplify right side
    403,740.60x = 221,861,253,377.61
  5. Step 5: Solve for x
    x = 221,861,253,377.61/403,740.60
  6. Step 6: Final answer
    x = 549,514.35

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1.5x scale

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.