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Finding the Fourth Proportional to 863,502.64, 1,295,540.70 and 383,663.68

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Solution

The fourth proportional to 863,502.64, 1,295,540.70 and 383,663.68 is: 575,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,502.64 : 1,295,540.70 = 383,663.68 : x
  2. Step 2: Convert to fraction form
    863,502.64/1,295,540.70 = 383,663.68/x
  3. Step 3: Cross multiply
    863,502.64x = 1,295,540.70 × 383,663.68
  4. Step 4: Simplify right side
    863,502.64x = 497,051,912,551.78
  5. Step 5: Solve for x
    x = 497,051,912,551.78/863,502.64
  6. Step 6: Final answer
    x = 575,622.92

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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.