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Finding the Fourth Proportional to 663,624.56, 915,802.81 and 361,818.56

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Solution

The fourth proportional to 663,624.56, 915,802.81 and 361,818.56 is: 499,310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,624.56 : 915,802.81 = 361,818.56 : x
  2. Step 2: Convert to fraction form
    663,624.56/915,802.81 = 361,818.56/x
  3. Step 3: Cross multiply
    663,624.56x = 915,802.81 × 361,818.56
  4. Step 4: Simplify right side
    663,624.56x = 331,354,455,343.11
  5. Step 5: Solve for x
    x = 331,354,455,343.11/663,624.56
  6. Step 6: Final answer
    x = 499,310.11

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