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Finding the Fourth Proportional to 498,036.60, 747,152.10 and 213,726.60

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Solution

The fourth proportional to 498,036.60, 747,152.10 and 213,726.60 is: 320,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,036.60 : 747,152.10 = 213,726.60 : x
  2. Step 2: Convert to fraction form
    498,036.60/747,152.10 = 213,726.60/x
  3. Step 3: Cross multiply
    498,036.60x = 747,152.10 × 213,726.60
  4. Step 4: Simplify right side
    498,036.60x = 159,686,278,015.86
  5. Step 5: Solve for x
    x = 159,686,278,015.86/498,036.60
  6. Step 6: Final answer
    x = 320,631.61

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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.