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Finding the Fourth Proportional to 435,067.20, 652,600.80 and 405,542.70

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Solution

The fourth proportional to 435,067.20, 652,600.80 and 405,542.70 is: 608,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,067.20 : 652,600.80 = 405,542.70 : x
  2. Step 2: Convert to fraction form
    435,067.20/652,600.80 = 405,542.70/x
  3. Step 3: Cross multiply
    435,067.20x = 652,600.80 × 405,542.70
  4. Step 4: Simplify right side
    435,067.20x = 264,657,490,454.16
  5. Step 5: Solve for x
    x = 264,657,490,454.16/435,067.20
  6. Step 6: Final answer
    x = 608,314.05

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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.