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Finding the Fourth Proportional to 520,240.17, 780,422.73 and 183,211.12

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Solution

The fourth proportional to 520,240.17, 780,422.73 and 183,211.12 is: 274,838.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,240.17 : 780,422.73 = 183,211.12 : x
  2. Step 2: Convert to fraction form
    520,240.17/780,422.73 = 183,211.12/x
  3. Step 3: Cross multiply
    520,240.17x = 780,422.73 × 183,211.12
  4. Step 4: Simplify right side
    520,240.17x = 142,982,122,436.76
  5. Step 5: Solve for x
    x = 142,982,122,436.76/520,240.17
  6. Step 6: Final answer
    x = 274,838.68

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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.