Home / 741,143.40-1,111,715.10-242,557.80

Finding the Fourth Proportional to 741,143.40, 1,111,715.10 and 242,557.80

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Solution

The fourth proportional to 741,143.40, 1,111,715.10 and 242,557.80 is: 363,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,143.40 : 1,111,715.10 = 242,557.80 : x
  2. Step 2: Convert to fraction form
    741,143.40/1,111,715.10 = 242,557.80/x
  3. Step 3: Cross multiply
    741,143.40x = 1,111,715.10 × 242,557.80
  4. Step 4: Simplify right side
    741,143.40x = 269,655,168,882.78
  5. Step 5: Solve for x
    x = 269,655,168,882.78/741,143.40
  6. Step 6: Final answer
    x = 363,836.70

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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.