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Finding the Fourth Proportional to 655,241.26, 904,511.95 and 440,505.88

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Solution

The fourth proportional to 655,241.26, 904,511.95 and 440,505.88 is: 608,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,241.26 : 904,511.95 = 440,505.88 : x
  2. Step 2: Convert to fraction form
    655,241.26/904,511.95 = 440,505.88/x
  3. Step 3: Cross multiply
    655,241.26x = 904,511.95 × 440,505.88
  4. Step 4: Simplify right side
    655,241.26x = 398,442,834,817.02
  5. Step 5: Solve for x
    x = 398,442,834,817.02/655,241.26
  6. Step 6: Final answer
    x = 608,085.69

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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.