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Finding the Fourth Proportional to 766,892.80, 1,150,339.20 and 714,404.80

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Solution

The fourth proportional to 766,892.80, 1,150,339.20 and 714,404.80 is: 1,071,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,892.80 : 1,150,339.20 = 714,404.80 : x
  2. Step 2: Convert to fraction form
    766,892.80/1,150,339.20 = 714,404.80/x
  3. Step 3: Cross multiply
    766,892.80x = 1,150,339.20 × 714,404.80
  4. Step 4: Simplify right side
    766,892.80x = 821,807,846,108.16
  5. Step 5: Solve for x
    x = 821,807,846,108.16/766,892.80
  6. Step 6: Final answer
    x = 1,071,607.20

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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.