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Finding the Fourth Proportional to 454,241.40, 680,778.90 and 348,536.40

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Solution

The fourth proportional to 454,241.40, 680,778.90 and 348,536.40 is: 522,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,241.40 : 680,778.90 = 348,536.40 : x
  2. Step 2: Convert to fraction form
    454,241.40/680,778.90 = 348,536.40/x
  3. Step 3: Cross multiply
    454,241.40x = 680,778.90 × 348,536.40
  4. Step 4: Simplify right side
    454,241.40x = 237,276,227,001.96
  5. Step 5: Solve for x
    x = 237,276,227,001.96/454,241.40
  6. Step 6: Final answer
    x = 522,357.11

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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.