Home / 762,002.60-1,142,203.78-256,388.04

Finding the Fourth Proportional to 762,002.60, 1,142,203.78 and 256,388.04

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Solution

The fourth proportional to 762,002.60, 1,142,203.78 and 256,388.04 is: 384,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,002.60 : 1,142,203.78 = 256,388.04 : x
  2. Step 2: Convert to fraction form
    762,002.60/1,142,203.78 = 256,388.04/x
  3. Step 3: Cross multiply
    762,002.60x = 1,142,203.78 × 256,388.04
  4. Step 4: Simplify right side
    762,002.60x = 292,847,388,434.79
  5. Step 5: Solve for x
    x = 292,847,388,434.79/762,002.60
  6. Step 6: Final answer
    x = 384,312.85

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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.