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Finding the Fourth Proportional to 440,724.72, 608,204.80 and 239,520.72

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Solution

The fourth proportional to 440,724.72, 608,204.80 and 239,520.72 is: 330,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,724.72 : 608,204.80 = 239,520.72 : x
  2. Step 2: Convert to fraction form
    440,724.72/608,204.80 = 239,520.72/x
  3. Step 3: Cross multiply
    440,724.72x = 608,204.80 × 239,520.72
  4. Step 4: Simplify right side
    440,724.72x = 145,677,651,603.46
  5. Step 5: Solve for x
    x = 145,677,651,603.46/440,724.72
  6. Step 6: Final answer
    x = 330,541.14

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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.