Home / 749,104.43-1,123,689.47-216,679.28

Finding the Fourth Proportional to 749,104.43, 1,123,689.47 and 216,679.28

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Solution

The fourth proportional to 749,104.43, 1,123,689.47 and 216,679.28 is: 325,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,104.43 : 1,123,689.47 = 216,679.28 : x
  2. Step 2: Convert to fraction form
    749,104.43/1,123,689.47 = 216,679.28/x
  3. Step 3: Cross multiply
    749,104.43x = 1,123,689.47 × 216,679.28
  4. Step 4: Simplify right side
    749,104.43x = 243,480,227,029.01
  5. Step 5: Solve for x
    x = 243,480,227,029.01/749,104.43
  6. Step 6: Final answer
    x = 325,028.42

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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.