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Finding the Fourth Proportional to 389,951.70, 584,927.55 and 123,733.05

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Solution

The fourth proportional to 389,951.70, 584,927.55 and 123,733.05 is: 185,599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,951.70 : 584,927.55 = 123,733.05 : x
  2. Step 2: Convert to fraction form
    389,951.70/584,927.55 = 123,733.05/x
  3. Step 3: Cross multiply
    389,951.70x = 584,927.55 × 123,733.05
  4. Step 4: Simplify right side
    389,951.70x = 72,374,869,790.53
  5. Step 5: Solve for x
    x = 72,374,869,790.53/389,951.70
  6. Step 6: Final answer
    x = 185,599.58

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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.