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Finding the Fourth Proportional to 625,293.48, 863,202.54 and 418,917.24

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Solution

The fourth proportional to 625,293.48, 863,202.54 and 418,917.24 is: 578,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,293.48 : 863,202.54 = 418,917.24 : x
  2. Step 2: Convert to fraction form
    625,293.48/863,202.54 = 418,917.24/x
  3. Step 3: Cross multiply
    625,293.48x = 863,202.54 × 418,917.24
  4. Step 4: Simplify right side
    625,293.48x = 361,610,425,617.79
  5. Step 5: Solve for x
    x = 361,610,425,617.79/625,293.48
  6. Step 6: Final answer
    x = 578,305.13

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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.