Home / 547,369.22-755,724.95-489,908.90

Finding the Fourth Proportional to 547,369.22, 755,724.95 and 489,908.90

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Solution

The fourth proportional to 547,369.22, 755,724.95 and 489,908.90 is: 676,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,369.22 : 755,724.95 = 489,908.90 : x
  2. Step 2: Convert to fraction form
    547,369.22/755,724.95 = 489,908.90/x
  3. Step 3: Cross multiply
    547,369.22x = 755,724.95 × 489,908.90
  4. Step 4: Simplify right side
    547,369.22x = 370,236,372,728.89
  5. Step 5: Solve for x
    x = 370,236,372,728.89/547,369.22
  6. Step 6: Final answer
    x = 676,392.39

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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.