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Finding the Fourth Proportional to 580,612.80, 870,627.60 and 264,712.80

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Solution

The fourth proportional to 580,612.80, 870,627.60 and 264,712.80 is: 396,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,612.80 : 870,627.60 = 264,712.80 : x
  2. Step 2: Convert to fraction form
    580,612.80/870,627.60 = 264,712.80/x
  3. Step 3: Cross multiply
    580,612.80x = 870,627.60 × 264,712.80
  4. Step 4: Simplify right side
    580,612.80x = 230,466,269,753.28
  5. Step 5: Solve for x
    x = 230,466,269,753.28/580,612.80
  6. Step 6: Final answer
    x = 396,936.25

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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.