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Finding the Fourth Proportional to 421,589.73, 581,630.40 and 268,600.52

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Solution

The fourth proportional to 421,589.73, 581,630.40 and 268,600.52 is: 370,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,589.73 : 581,630.40 = 268,600.52 : x
  2. Step 2: Convert to fraction form
    421,589.73/581,630.40 = 268,600.52/x
  3. Step 3: Cross multiply
    421,589.73x = 581,630.40 × 268,600.52
  4. Step 4: Simplify right side
    421,589.73x = 156,226,223,636.65
  5. Step 5: Solve for x
    x = 156,226,223,636.65/421,589.73
  6. Step 6: Final answer
    x = 370,564.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.