Home / 498,942.20-748,413.30-439,893.20

Finding the Fourth Proportional to 498,942.20, 748,413.30 and 439,893.20

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Solution

The fourth proportional to 498,942.20, 748,413.30 and 439,893.20 is: 659,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,942.20 : 748,413.30 = 439,893.20 : x
  2. Step 2: Convert to fraction form
    498,942.20/748,413.30 = 439,893.20/x
  3. Step 3: Cross multiply
    498,942.20x = 748,413.30 × 439,893.20
  4. Step 4: Simplify right side
    498,942.20x = 329,221,921,459.56
  5. Step 5: Solve for x
    x = 329,221,921,459.56/498,942.20
  6. Step 6: Final answer
    x = 659,839.80

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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.