Home / 689,451.35-1,034,181.59-240,180.71

Finding the Fourth Proportional to 689,451.35, 1,034,181.59 and 240,180.71

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Solution

The fourth proportional to 689,451.35, 1,034,181.59 and 240,180.71 is: 360,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,451.35 : 1,034,181.59 = 240,180.71 : x
  2. Step 2: Convert to fraction form
    689,451.35/1,034,181.59 = 240,180.71/x
  3. Step 3: Cross multiply
    689,451.35x = 1,034,181.59 × 240,180.71
  4. Step 4: Simplify right side
    689,451.35x = 248,390,462,183.32
  5. Step 5: Solve for x
    x = 248,390,462,183.32/689,451.35
  6. Step 6: Final answer
    x = 360,272.65

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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.