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Finding the Fourth Proportional to 673,453.52, 929,702.28 and 418,886.48

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Solution

The fourth proportional to 673,453.52, 929,702.28 and 418,886.48 is: 578,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,453.52 : 929,702.28 = 418,886.48 : x
  2. Step 2: Convert to fraction form
    673,453.52/929,702.28 = 418,886.48/x
  3. Step 3: Cross multiply
    673,453.52x = 929,702.28 × 418,886.48
  4. Step 4: Simplify right side
    673,453.52x = 389,439,715,517.17
  5. Step 5: Solve for x
    x = 389,439,715,517.17/673,453.52
  6. Step 6: Final answer
    x = 578,272.60

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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.