Home / 653,854.37-902,721.60-518,435.33

Finding the Fourth Proportional to 653,854.37, 902,721.60 and 518,435.33

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Solution

The fourth proportional to 653,854.37, 902,721.60 and 518,435.33 is: 715,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,854.37 : 902,721.60 = 518,435.33 : x
  2. Step 2: Convert to fraction form
    653,854.37/902,721.60 = 518,435.33/x
  3. Step 3: Cross multiply
    653,854.37x = 902,721.60 × 518,435.33
  4. Step 4: Simplify right side
    653,854.37x = 468,002,766,080.52
  5. Step 5: Solve for x
    x = 468,002,766,080.52/653,854.37
  6. Step 6: Final answer
    x = 715,759.95

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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.