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Finding the Fourth Proportional to 663,234.12, 915,287.58 and 376,802.73

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Solution

The fourth proportional to 663,234.12, 915,287.58 and 376,802.73 is: 520,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,234.12 : 915,287.58 = 376,802.73 : x
  2. Step 2: Convert to fraction form
    663,234.12/915,287.58 = 376,802.73/x
  3. Step 3: Cross multiply
    663,234.12x = 915,287.58 × 376,802.73
  4. Step 4: Simplify right side
    663,234.12x = 344,882,858,879.09
  5. Step 5: Solve for x
    x = 344,882,858,879.09/663,234.12
  6. Step 6: Final answer
    x = 520,001.68

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Similar ratio
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1.5x scale

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.