Home / 755,123.10-1,132,684.65-256,487.10

Finding the Fourth Proportional to 755,123.10, 1,132,684.65 and 256,487.10

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Solution

The fourth proportional to 755,123.10, 1,132,684.65 and 256,487.10 is: 384,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,123.10 : 1,132,684.65 = 256,487.10 : x
  2. Step 2: Convert to fraction form
    755,123.10/1,132,684.65 = 256,487.10/x
  3. Step 3: Cross multiply
    755,123.10x = 1,132,684.65 × 256,487.10
  4. Step 4: Simplify right side
    755,123.10x = 290,519,001,093.02
  5. Step 5: Solve for x
    x = 290,519,001,093.02/755,123.10
  6. Step 6: Final answer
    x = 384,730.65

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Double scale
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Similar ratio
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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.