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Finding the Fourth Proportional to 663,623.84, 915,801.80 and 361,817.84

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Solution

The fourth proportional to 663,623.84, 915,801.80 and 361,817.84 is: 499,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,623.84 : 915,801.80 = 361,817.84 : x
  2. Step 2: Convert to fraction form
    663,623.84/915,801.80 = 361,817.84/x
  3. Step 3: Cross multiply
    663,623.84x = 915,801.80 × 361,817.84
  4. Step 4: Simplify right side
    663,623.84x = 331,353,422,756.01
  5. Step 5: Solve for x
    x = 331,353,422,756.01/663,623.84
  6. Step 6: Final answer
    x = 499,309.10

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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.