Home / 686,001.70-1,029,002.55-187,365.70

Finding the Fourth Proportional to 686,001.70, 1,029,002.55 and 187,365.70

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Solution

The fourth proportional to 686,001.70, 1,029,002.55 and 187,365.70 is: 281,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,001.70 : 1,029,002.55 = 187,365.70 : x
  2. Step 2: Convert to fraction form
    686,001.70/1,029,002.55 = 187,365.70/x
  3. Step 3: Cross multiply
    686,001.70x = 1,029,002.55 × 187,365.70
  4. Step 4: Simplify right side
    686,001.70x = 192,799,783,082.54
  5. Step 5: Solve for x
    x = 192,799,783,082.54/686,001.70
  6. Step 6: Final answer
    x = 281,048.55

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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.