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Finding the Fourth Proportional to 440,079.38, 658,936.42 and 279,284.76

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Solution

The fourth proportional to 440,079.38, 658,936.42 and 279,284.76 is: 418,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,079.38 : 658,936.42 = 279,284.76 : x
  2. Step 2: Convert to fraction form
    440,079.38/658,936.42 = 279,284.76/x
  3. Step 3: Cross multiply
    440,079.38x = 658,936.42 × 279,284.76
  4. Step 4: Simplify right side
    440,079.38x = 184,030,899,216.75
  5. Step 5: Solve for x
    x = 184,030,899,216.75/440,079.38
  6. Step 6: Final answer
    x = 418,176.60

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1.5x scale

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.