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Finding the Fourth Proportional to 650,312.16, 897,737.60 and 489,228.68

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Solution

The fourth proportional to 650,312.16, 897,737.60 and 489,228.68 is: 675,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,312.16 : 897,737.60 = 489,228.68 : x
  2. Step 2: Convert to fraction form
    650,312.16/897,737.60 = 489,228.68/x
  3. Step 3: Cross multiply
    650,312.16x = 897,737.60 × 489,228.68
  4. Step 4: Simplify right side
    650,312.16x = 439,198,981,034.37
  5. Step 5: Solve for x
    x = 439,198,981,034.37/650,312.16
  6. Step 6: Final answer
    x = 675,366.40

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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.