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Finding the Fourth Proportional to 511,242.30, 766,863.45 and 511,242.30

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Solution

The fourth proportional to 511,242.30, 766,863.45 and 511,242.30 is: 766,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,242.30 : 766,863.45 = 511,242.30 : x
  2. Step 2: Convert to fraction form
    511,242.30/766,863.45 = 511,242.30/x
  3. Step 3: Cross multiply
    511,242.30x = 766,863.45 × 511,242.30
  4. Step 4: Simplify right side
    511,242.30x = 392,053,033,963.94
  5. Step 5: Solve for x
    x = 392,053,033,963.94/511,242.30
  6. Step 6: Final answer
    x = 766,863.45

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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.