Home / 659,310.93-988,769.55-280,230.02

Finding the Fourth Proportional to 659,310.93, 988,769.55 and 280,230.02

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Solution

The fourth proportional to 659,310.93, 988,769.55 and 280,230.02 is: 420,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,310.93 : 988,769.55 = 280,230.02 : x
  2. Step 2: Convert to fraction form
    659,310.93/988,769.55 = 280,230.02/x
  3. Step 3: Cross multiply
    659,310.93x = 988,769.55 × 280,230.02
  4. Step 4: Simplify right side
    659,310.93x = 277,082,905,828.04
  5. Step 5: Solve for x
    x = 277,082,905,828.04/659,310.93
  6. Step 6: Final answer
    x = 420,261.36

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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.