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Finding the Fourth Proportional to 768,808.32, 1,060,267.20 and 482,359.68

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Solution

The fourth proportional to 768,808.32, 1,060,267.20 and 482,359.68 is: 665,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,808.32 : 1,060,267.20 = 482,359.68 : x
  2. Step 2: Convert to fraction form
    768,808.32/1,060,267.20 = 482,359.68/x
  3. Step 3: Cross multiply
    768,808.32x = 1,060,267.20 × 482,359.68
  4. Step 4: Simplify right side
    768,808.32x = 511,430,147,306.50
  5. Step 5: Solve for x
    x = 511,430,147,306.50/768,808.32
  6. Step 6: Final answer
    x = 665,224.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.