Home / 791,139.78-1,186,742.55-230,174.28

Finding the Fourth Proportional to 791,139.78, 1,186,742.55 and 230,174.28

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Solution

The fourth proportional to 791,139.78, 1,186,742.55 and 230,174.28 is: 345,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,139.78 : 1,186,742.55 = 230,174.28 : x
  2. Step 2: Convert to fraction form
    791,139.78/1,186,742.55 = 230,174.28/x
  3. Step 3: Cross multiply
    791,139.78x = 1,186,742.55 × 230,174.28
  4. Step 4: Simplify right side
    791,139.78x = 273,157,611,991.61
  5. Step 5: Solve for x
    x = 273,157,611,991.61/791,139.78
  6. Step 6: Final answer
    x = 345,270.99

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Double scale
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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.