Home / 769,008.70-1,153,513.05-454,080.70

Finding the Fourth Proportional to 769,008.70, 1,153,513.05 and 454,080.70

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Solution

The fourth proportional to 769,008.70, 1,153,513.05 and 454,080.70 is: 681,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,008.70 : 1,153,513.05 = 454,080.70 : x
  2. Step 2: Convert to fraction form
    769,008.70/1,153,513.05 = 454,080.70/x
  3. Step 3: Cross multiply
    769,008.70x = 1,153,513.05 × 454,080.70
  4. Step 4: Simplify right side
    769,008.70x = 523,788,013,203.14
  5. Step 5: Solve for x
    x = 523,788,013,203.14/769,008.70
  6. Step 6: Final answer
    x = 681,121.05

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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.