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Finding the Fourth Proportional to 439,612.60, 659,326.63 and 123,995.70

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Solution

The fourth proportional to 439,612.60, 659,326.63 and 123,995.70 is: 185,967.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,612.60 : 659,326.63 = 123,995.70 : x
  2. Step 2: Convert to fraction form
    439,612.60/659,326.63 = 123,995.70/x
  3. Step 3: Cross multiply
    439,612.60x = 659,326.63 × 123,995.70
  4. Step 4: Simplify right side
    439,612.60x = 81,753,667,015.49
  5. Step 5: Solve for x
    x = 81,753,667,015.49/439,612.60
  6. Step 6: Final answer
    x = 185,967.52

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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.