Home / 520,815.16-781,229.22-165,827.80

Finding the Fourth Proportional to 520,815.16, 781,229.22 and 165,827.80

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Solution

The fourth proportional to 520,815.16, 781,229.22 and 165,827.80 is: 248,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,815.16 : 781,229.22 = 165,827.80 : x
  2. Step 2: Convert to fraction form
    520,815.16/781,229.22 = 165,827.80/x
  3. Step 3: Cross multiply
    520,815.16x = 781,229.22 × 165,827.80
  4. Step 4: Simplify right side
    520,815.16x = 129,549,522,848.32
  5. Step 5: Solve for x
    x = 129,549,522,848.32/520,815.16
  6. Step 6: Final answer
    x = 248,743.76

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1.5x scale

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.