Home / 762,008.40-1,142,212.44-256,393.86

Finding the Fourth Proportional to 762,008.40, 1,142,212.44 and 256,393.86

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Solution

The fourth proportional to 762,008.40, 1,142,212.44 and 256,393.86 is: 384,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,008.40 : 1,142,212.44 = 256,393.86 : x
  2. Step 2: Convert to fraction form
    762,008.40/1,142,212.44 = 256,393.86/x
  3. Step 3: Cross multiply
    762,008.40x = 1,142,212.44 × 256,393.86
  4. Step 4: Simplify right side
    762,008.40x = 292,856,256,431.62
  5. Step 5: Solve for x
    x = 292,856,256,431.62/762,008.40
  6. Step 6: Final answer
    x = 384,321.56

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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.