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Finding the Fourth Proportional to 390,682.10, 584,424.47 and 295,202.54

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Solution

The fourth proportional to 390,682.10, 584,424.47 and 295,202.54 is: 441,595.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,682.10 : 584,424.47 = 295,202.54 : x
  2. Step 2: Convert to fraction form
    390,682.10/584,424.47 = 295,202.54/x
  3. Step 3: Cross multiply
    390,682.10x = 584,424.47 × 295,202.54
  4. Step 4: Simplify right side
    390,682.10x = 172,523,587,982.15
  5. Step 5: Solve for x
    x = 172,523,587,982.15/390,682.10
  6. Step 6: Final answer
    x = 441,595.83

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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.