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Finding the Fourth Proportional to 882,234, 1,217,480.36 and 489,826.86

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Solution

The fourth proportional to 882,234, 1,217,480.36 and 489,826.86 is: 675,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,234 : 1,217,480.36 = 489,826.86 : x
  2. Step 2: Convert to fraction form
    882,234/1,217,480.36 = 489,826.86/x
  3. Step 3: Cross multiply
    882,234x = 1,217,480.36 × 489,826.86
  4. Step 4: Simplify right side
    882,234x = 596,354,581,850.47
  5. Step 5: Solve for x
    x = 596,354,581,850.47/882,234
  6. Step 6: Final answer
    x = 675,959.65

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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.