Home / 653,844.92-902,708.55-518,425.88

Finding the Fourth Proportional to 653,844.92, 902,708.55 and 518,425.88

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Solution

The fourth proportional to 653,844.92, 902,708.55 and 518,425.88 is: 715,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,844.92 : 902,708.55 = 518,425.88 : x
  2. Step 2: Convert to fraction form
    653,844.92/902,708.55 = 518,425.88/x
  3. Step 3: Cross multiply
    653,844.92x = 902,708.55 × 518,425.88
  4. Step 4: Simplify right side
    653,844.92x = 467,987,474,417.27
  5. Step 5: Solve for x
    x = 467,987,474,417.27/653,844.92
  6. Step 6: Final answer
    x = 715,746.90

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1.5x scale

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.