Home / 749,101.43-1,123,684.95-216,676.28

Finding the Fourth Proportional to 749,101.43, 1,123,684.95 and 216,676.28

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Solution

The fourth proportional to 749,101.43, 1,123,684.95 and 216,676.28 is: 325,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,101.43 : 1,123,684.95 = 216,676.28 : x
  2. Step 2: Convert to fraction form
    749,101.43/1,123,684.95 = 216,676.28/x
  3. Step 3: Cross multiply
    749,101.43x = 1,123,684.95 × 216,676.28
  4. Step 4: Simplify right side
    749,101.43x = 243,475,878,479.73
  5. Step 5: Solve for x
    x = 243,475,878,479.73/749,101.43
  6. Step 6: Final answer
    x = 325,023.91

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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.