Home / 748,865.80-1,123,298.70-216,404.20

Finding the Fourth Proportional to 748,865.80, 1,123,298.70 and 216,404.20

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Solution

The fourth proportional to 748,865.80, 1,123,298.70 and 216,404.20 is: 324,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865.80 : 1,123,298.70 = 216,404.20 : x
  2. Step 2: Convert to fraction form
    748,865.80/1,123,298.70 = 216,404.20/x
  3. Step 3: Cross multiply
    748,865.80x = 1,123,298.70 × 216,404.20
  4. Step 4: Simplify right side
    748,865.80x = 243,086,556,534.54
  5. Step 5: Solve for x
    x = 243,086,556,534.54/748,865.80
  6. Step 6: Final answer
    x = 324,606.30

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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.