Home / 778,964.50-1,168,446.75-187,988.50

Finding the Fourth Proportional to 778,964.50, 1,168,446.75 and 187,988.50

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Solution

The fourth proportional to 778,964.50, 1,168,446.75 and 187,988.50 is: 281,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,964.50 : 1,168,446.75 = 187,988.50 : x
  2. Step 2: Convert to fraction form
    778,964.50/1,168,446.75 = 187,988.50/x
  3. Step 3: Cross multiply
    778,964.50x = 1,168,446.75 × 187,988.50
  4. Step 4: Simplify right side
    778,964.50x = 219,654,551,862.38
  5. Step 5: Solve for x
    x = 219,654,551,862.38/778,964.50
  6. Step 6: Final answer
    x = 281,982.75

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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.