Home / 499,260.72-688,984.38-284,397.60

Finding the Fourth Proportional to 499,260.72, 688,984.38 and 284,397.60

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Solution

The fourth proportional to 499,260.72, 688,984.38 and 284,397.60 is: 392,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,260.72 : 688,984.38 = 284,397.60 : x
  2. Step 2: Convert to fraction form
    499,260.72/688,984.38 = 284,397.60/x
  3. Step 3: Cross multiply
    499,260.72x = 688,984.38 × 284,397.60
  4. Step 4: Simplify right side
    499,260.72x = 195,945,504,109.49
  5. Step 5: Solve for x
    x = 195,945,504,109.49/499,260.72
  6. Step 6: Final answer
    x = 392,471.30

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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.