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Finding the Fourth Proportional to 498,468.10, 747,216.15 and 285,016.90

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Solution

The fourth proportional to 498,468.10, 747,216.15 and 285,016.90 is: 427,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,468.10 : 747,216.15 = 285,016.90 : x
  2. Step 2: Convert to fraction form
    498,468.10/747,216.15 = 285,016.90/x
  3. Step 3: Cross multiply
    498,468.10x = 747,216.15 × 285,016.90
  4. Step 4: Simplify right side
    498,468.10x = 212,969,230,702.94
  5. Step 5: Solve for x
    x = 212,969,230,702.94/498,468.10
  6. Step 6: Final answer
    x = 427,247.46

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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.