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Finding the Fourth Proportional to 659,472.32, 988,442.75 and 303,739.76

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Solution

The fourth proportional to 659,472.32, 988,442.75 and 303,739.76 is: 455,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,472.32 : 988,442.75 = 303,739.76 : x
  2. Step 2: Convert to fraction form
    659,472.32/988,442.75 = 303,739.76/x
  3. Step 3: Cross multiply
    659,472.32x = 988,442.75 × 303,739.76
  4. Step 4: Simplify right side
    659,472.32x = 300,229,357,197.83
  5. Step 5: Solve for x
    x = 300,229,357,197.83/659,472.32
  6. Step 6: Final answer
    x = 455,256.95

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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.