Home / 689,930.70-1,034,896.05-240,502.20

Finding the Fourth Proportional to 689,930.70, 1,034,896.05 and 240,502.20

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Solution

The fourth proportional to 689,930.70, 1,034,896.05 and 240,502.20 is: 360,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,930.70 : 1,034,896.05 = 240,502.20 : x
  2. Step 2: Convert to fraction form
    689,930.70/1,034,896.05 = 240,502.20/x
  3. Step 3: Cross multiply
    689,930.70x = 1,034,896.05 × 240,502.20
  4. Step 4: Simplify right side
    689,930.70x = 248,894,776,796.31
  5. Step 5: Solve for x
    x = 248,894,776,796.31/689,930.70
  6. Step 6: Final answer
    x = 360,753.30

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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.