Home / 755,306.10-1,132,959.15-256,670.10

Finding the Fourth Proportional to 755,306.10, 1,132,959.15 and 256,670.10

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Solution

The fourth proportional to 755,306.10, 1,132,959.15 and 256,670.10 is: 385,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,306.10 : 1,132,959.15 = 256,670.10 : x
  2. Step 2: Convert to fraction form
    755,306.10/1,132,959.15 = 256,670.10/x
  3. Step 3: Cross multiply
    755,306.10x = 1,132,959.15 × 256,670.10
  4. Step 4: Simplify right side
    755,306.10x = 290,796,738,326.42
  5. Step 5: Solve for x
    x = 290,796,738,326.42/755,306.10
  6. Step 6: Final answer
    x = 385,005.15

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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.