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Finding the Fourth Proportional to 581,680.80, 872,229.60 and 265,780.80

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Solution

The fourth proportional to 581,680.80, 872,229.60 and 265,780.80 is: 398,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,680.80 : 872,229.60 = 265,780.80 : x
  2. Step 2: Convert to fraction form
    581,680.80/872,229.60 = 265,780.80/x
  3. Step 3: Cross multiply
    581,680.80x = 872,229.60 × 265,780.80
  4. Step 4: Simplify right side
    581,680.80x = 231,821,880,871.68
  5. Step 5: Solve for x
    x = 231,821,880,871.68/581,680.80
  6. Step 6: Final answer
    x = 398,537.96

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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.