Home / 498,619.20-747,710.10-199,000.20

Finding the Fourth Proportional to 498,619.20, 747,710.10 and 199,000.20

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Solution

The fourth proportional to 498,619.20, 747,710.10 and 199,000.20 is: 298,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,619.20 : 747,710.10 = 199,000.20 : x
  2. Step 2: Convert to fraction form
    498,619.20/747,710.10 = 199,000.20/x
  3. Step 3: Cross multiply
    498,619.20x = 747,710.10 × 199,000.20
  4. Step 4: Simplify right side
    498,619.20x = 148,794,459,442.02
  5. Step 5: Solve for x
    x = 148,794,459,442.02/498,619.20
  6. Step 6: Final answer
    x = 298,413.02

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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.