Home / 748,857.80-1,123,286.70-571,710.80

Finding the Fourth Proportional to 748,857.80, 1,123,286.70 and 571,710.80

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Solution

The fourth proportional to 748,857.80, 1,123,286.70 and 571,710.80 is: 857,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,857.80 : 1,123,286.70 = 571,710.80 : x
  2. Step 2: Convert to fraction form
    748,857.80/1,123,286.70 = 571,710.80/x
  3. Step 3: Cross multiply
    748,857.80x = 1,123,286.70 × 571,710.80
  4. Step 4: Simplify right side
    748,857.80x = 642,195,137,886.36
  5. Step 5: Solve for x
    x = 642,195,137,886.36/748,857.80
  6. Step 6: Final answer
    x = 857,566.20

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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.