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Finding the Fourth Proportional to 663,287.00, 915,360.62 and 376,855.61

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Solution

The fourth proportional to 663,287.00, 915,360.62 and 376,855.61 is: 520,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,287.00 : 915,360.62 = 376,855.61 : x
  2. Step 2: Convert to fraction form
    663,287.00/915,360.62 = 376,855.61/x
  3. Step 3: Cross multiply
    663,287.00x = 915,360.62 × 376,855.61
  4. Step 4: Simplify right side
    663,287.00x = 344,958,778,359.00
  5. Step 5: Solve for x
    x = 344,958,778,359.00/663,287.00
  6. Step 6: Final answer
    x = 520,074.69

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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.