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Finding the Fourth Proportional to 440,676.48, 608,133.60 and 239,472

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Solution

The fourth proportional to 440,676.48, 608,133.60 and 239,472 is: 330,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,676.48 : 608,133.60 = 239,472 : x
  2. Step 2: Convert to fraction form
    440,676.48/608,133.60 = 239,472/x
  3. Step 3: Cross multiply
    440,676.48x = 608,133.60 × 239,472
  4. Step 4: Simplify right side
    440,676.48x = 145,630,969,459.20
  5. Step 5: Solve for x
    x = 145,630,969,459.20/440,676.48
  6. Step 6: Final answer
    x = 330,471.39

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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.