Home / 689,635.48-1,034,120.04-240,345.76

Finding the Fourth Proportional to 689,635.48, 1,034,120.04 and 240,345.76

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Solution

The fourth proportional to 689,635.48, 1,034,120.04 and 240,345.76 is: 360,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,635.48 : 1,034,120.04 = 240,345.76 : x
  2. Step 2: Convert to fraction form
    689,635.48/1,034,120.04 = 240,345.76/x
  3. Step 3: Cross multiply
    689,635.48x = 1,034,120.04 × 240,345.76
  4. Step 4: Simplify right side
    689,635.48x = 248,546,366,945.03
  5. Step 5: Solve for x
    x = 248,546,366,945.03/689,635.48
  6. Step 6: Final answer
    x = 360,402.52

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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.