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Finding the Fourth Proportional to 551,617.88, 761,265.12 and 415,411.52

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Solution

The fourth proportional to 551,617.88, 761,265.12 and 415,411.52 is: 573,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,617.88 : 761,265.12 = 415,411.52 : x
  2. Step 2: Convert to fraction form
    551,617.88/761,265.12 = 415,411.52/x
  3. Step 3: Cross multiply
    551,617.88x = 761,265.12 × 415,411.52
  4. Step 4: Simplify right side
    551,617.88x = 316,238,300,622.18
  5. Step 5: Solve for x
    x = 316,238,300,622.18/551,617.88
  6. Step 6: Final answer
    x = 573,292.33

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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.