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Finding the Fourth Proportional to 440,317, 607,637.46 and 239,113

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Solution

The fourth proportional to 440,317, 607,637.46 and 239,113 is: 329,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,317 : 607,637.46 = 239,113 : x
  2. Step 2: Convert to fraction form
    440,317/607,637.46 = 239,113/x
  3. Step 3: Cross multiply
    440,317x = 607,637.46 × 239,113
  4. Step 4: Simplify right side
    440,317x = 145,294,015,972.98
  5. Step 5: Solve for x
    x = 145,294,015,972.98/440,317
  6. Step 6: Final answer
    x = 329,975.94

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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.