Home / 757,800.70-1,136,701.05-687,816.70

Finding the Fourth Proportional to 757,800.70, 1,136,701.05 and 687,816.70

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Solution

The fourth proportional to 757,800.70, 1,136,701.05 and 687,816.70 is: 1,031,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,800.70 : 1,136,701.05 = 687,816.70 : x
  2. Step 2: Convert to fraction form
    757,800.70/1,136,701.05 = 687,816.70/x
  3. Step 3: Cross multiply
    757,800.70x = 1,136,701.05 × 687,816.70
  4. Step 4: Simplify right side
    757,800.70x = 781,841,965,097.54
  5. Step 5: Solve for x
    x = 781,841,965,097.54/757,800.70
  6. Step 6: Final answer
    x = 1,031,725.05

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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.