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Finding the Fourth Proportional to 580,046.55, 870,111.27 and 242,747.57

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Solution

The fourth proportional to 580,046.55, 870,111.27 and 242,747.57 is: 364,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,046.55 : 870,111.27 = 242,747.57 : x
  2. Step 2: Convert to fraction form
    580,046.55/870,111.27 = 242,747.57/x
  3. Step 3: Cross multiply
    580,046.55x = 870,111.27 × 242,747.57
  4. Step 4: Simplify right side
    580,046.55x = 211,217,392,071.56
  5. Step 5: Solve for x
    x = 211,217,392,071.56/580,046.55
  6. Step 6: Final answer
    x = 364,138.69

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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.