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Finding the Fourth Proportional to 547,368.59, 755,724.09 and 489,908.27

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Solution

The fourth proportional to 547,368.59, 755,724.09 and 489,908.27 is: 676,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,368.59 : 755,724.09 = 489,908.27 : x
  2. Step 2: Convert to fraction form
    547,368.59/755,724.09 = 489,908.27/x
  3. Step 3: Cross multiply
    547,368.59x = 755,724.09 × 489,908.27
  4. Step 4: Simplify right side
    547,368.59x = 370,235,479,079.68
  5. Step 5: Solve for x
    x = 370,235,479,079.68/547,368.59
  6. Step 6: Final answer
    x = 676,391.53

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1.5x scale

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.