Home / 499,218.36-688,844.35-284,331.03

Finding the Fourth Proportional to 499,218.36, 688,844.35 and 284,331.03

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Solution

The fourth proportional to 499,218.36, 688,844.35 and 284,331.03 is: 392,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,218.36 : 688,844.35 = 284,331.03 : x
  2. Step 2: Convert to fraction form
    499,218.36/688,844.35 = 284,331.03/x
  3. Step 3: Cross multiply
    499,218.36x = 688,844.35 × 284,331.03
  4. Step 4: Simplify right side
    499,218.36x = 195,859,818,679.30
  5. Step 5: Solve for x
    x = 195,859,818,679.30/499,218.36
  6. Step 6: Final answer
    x = 392,332.97

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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.