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Finding the Fourth Proportional to 452,252.90, 678,378.61 and 352,487.90

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Solution

The fourth proportional to 452,252.90, 678,378.61 and 352,487.90 is: 528,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,252.90 : 678,378.61 = 352,487.90 : x
  2. Step 2: Convert to fraction form
    452,252.90/678,378.61 = 352,487.90/x
  3. Step 3: Cross multiply
    452,252.90x = 678,378.61 × 352,487.90
  4. Step 4: Simplify right side
    452,252.90x = 239,120,253,780.38
  5. Step 5: Solve for x
    x = 239,120,253,780.38/452,252.90
  6. Step 6: Final answer
    x = 528,731.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.