Home / 866,090.52-1,299,052.17-266,890.79

Finding the Fourth Proportional to 866,090.52, 1,299,052.17 and 266,890.79

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Solution

The fourth proportional to 866,090.52, 1,299,052.17 and 266,890.79 is: 400,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,090.52 : 1,299,052.17 = 266,890.79 : x
  2. Step 2: Convert to fraction form
    866,090.52/1,299,052.17 = 266,890.79/x
  3. Step 3: Cross multiply
    866,090.52x = 1,299,052.17 × 266,890.79
  4. Step 4: Simplify right side
    866,090.52x = 346,705,053,407.25
  5. Step 5: Solve for x
    x = 346,705,053,407.25/866,090.52
  6. Step 6: Final answer
    x = 400,310.41

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Double scale
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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.