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Finding the Fourth Proportional to 784,671.90, 1,177,007.85 and 607,524.90

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Solution

The fourth proportional to 784,671.90, 1,177,007.85 and 607,524.90 is: 911,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,671.90 : 1,177,007.85 = 607,524.90 : x
  2. Step 2: Convert to fraction form
    784,671.90/1,177,007.85 = 607,524.90/x
  3. Step 3: Cross multiply
    784,671.90x = 1,177,007.85 × 607,524.90
  4. Step 4: Simplify right side
    784,671.90x = 715,061,576,370.47
  5. Step 5: Solve for x
    x = 715,061,576,370.47/784,671.90
  6. Step 6: Final answer
    x = 911,287.35

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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.