Home / 458,280.20-688,035.90-268,934.60

Finding the Fourth Proportional to 458,280.20, 688,035.90 and 268,934.60

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Solution

The fourth proportional to 458,280.20, 688,035.90 and 268,934.60 is: 403,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,280.20 : 688,035.90 = 268,934.60 : x
  2. Step 2: Convert to fraction form
    458,280.20/688,035.90 = 268,934.60/x
  3. Step 3: Cross multiply
    458,280.20x = 688,035.90 × 268,934.60
  4. Step 4: Simplify right side
    458,280.20x = 185,036,659,552.14
  5. Step 5: Solve for x
    x = 185,036,659,552.14/458,280.20
  6. Step 6: Final answer
    x = 403,763.16

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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.