Home / 755,266.78-1,132,900.17-256,630.78

Finding the Fourth Proportional to 755,266.78, 1,132,900.17 and 256,630.78

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Solution

The fourth proportional to 755,266.78, 1,132,900.17 and 256,630.78 is: 384,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,266.78 : 1,132,900.17 = 256,630.78 : x
  2. Step 2: Convert to fraction form
    755,266.78/1,132,900.17 = 256,630.78/x
  3. Step 3: Cross multiply
    755,266.78x = 1,132,900.17 × 256,630.78
  4. Step 4: Simplify right side
    755,266.78x = 290,737,056,186.54
  5. Step 5: Solve for x
    x = 290,737,056,186.54/755,266.78
  6. Step 6: Final answer
    x = 384,946.17

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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.