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Finding the Fourth Proportional to 440,332.88, 607,659.37 and 239,128.88

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Solution

The fourth proportional to 440,332.88, 607,659.37 and 239,128.88 is: 329,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,332.88 : 607,659.37 = 239,128.88 : x
  2. Step 2: Convert to fraction form
    440,332.88/607,659.37 = 239,128.88/x
  3. Step 3: Cross multiply
    440,332.88x = 607,659.37 × 239,128.88
  4. Step 4: Simplify right side
    440,332.88x = 145,308,900,933.49
  5. Step 5: Solve for x
    x = 145,308,900,933.49/440,332.88
  6. Step 6: Final answer
    x = 329,997.85

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1.5x scale

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.