Home / 778,001.70-1,167,002.55-187,025.70

Finding the Fourth Proportional to 778,001.70, 1,167,002.55 and 187,025.70

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Solution

The fourth proportional to 778,001.70, 1,167,002.55 and 187,025.70 is: 280,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,001.70 : 1,167,002.55 = 187,025.70 : x
  2. Step 2: Convert to fraction form
    778,001.70/1,167,002.55 = 187,025.70/x
  3. Step 3: Cross multiply
    778,001.70x = 1,167,002.55 × 187,025.70
  4. Step 4: Simplify right side
    778,001.70x = 218,259,468,815.54
  5. Step 5: Solve for x
    x = 218,259,468,815.54/778,001.70
  6. Step 6: Final answer
    x = 280,538.55

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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.