Home / 749,107.93-1,123,694.72-216,682.78

Finding the Fourth Proportional to 749,107.93, 1,123,694.72 and 216,682.78

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Solution

The fourth proportional to 749,107.93, 1,123,694.72 and 216,682.78 is: 325,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,107.93 : 1,123,694.72 = 216,682.78 : x
  2. Step 2: Convert to fraction form
    749,107.93/1,123,694.72 = 216,682.78/x
  3. Step 3: Cross multiply
    749,107.93x = 1,123,694.72 × 216,682.78
  4. Step 4: Simplify right side
    749,107.93x = 243,485,295,800.92
  5. Step 5: Solve for x
    x = 243,485,295,800.92/749,107.93
  6. Step 6: Final answer
    x = 325,033.66

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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.