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Finding the Fourth Proportional to 650,320.11, 897,682.50 and 489,641.22

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Solution

The fourth proportional to 650,320.11, 897,682.50 and 489,641.22 is: 675,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,320.11 : 897,682.50 = 489,641.22 : x
  2. Step 2: Convert to fraction form
    650,320.11/897,682.50 = 489,641.22/x
  3. Step 3: Cross multiply
    650,320.11x = 897,682.50 × 489,641.22
  4. Step 4: Simplify right side
    650,320.11x = 439,542,354,472.65
  5. Step 5: Solve for x
    x = 439,542,354,472.65/650,320.11
  6. Step 6: Final answer
    x = 675,886.15

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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.