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Finding the Fourth Proportional to 489,207.87, 735,211.49 and 240,064.83

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Solution

The fourth proportional to 489,207.87, 735,211.49 and 240,064.83 is: 360,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,207.87 : 735,211.49 = 240,064.83 : x
  2. Step 2: Convert to fraction form
    489,207.87/735,211.49 = 240,064.83/x
  3. Step 3: Cross multiply
    489,207.87x = 735,211.49 × 240,064.83
  4. Step 4: Simplify right side
    489,207.87x = 176,498,421,360.90
  5. Step 5: Solve for x
    x = 176,498,421,360.90/489,207.87
  6. Step 6: Final answer
    x = 360,784.10

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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.