Home / 326,497.40-489,746.10-89,839.70

Finding the Fourth Proportional to 326,497.40, 489,746.10 and 89,839.70

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Solution

The fourth proportional to 326,497.40, 489,746.10 and 89,839.70 is: 134,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,497.40 : 489,746.10 = 89,839.70 : x
  2. Step 2: Convert to fraction form
    326,497.40/489,746.10 = 89,839.70/x
  3. Step 3: Cross multiply
    326,497.40x = 489,746.10 × 89,839.70
  4. Step 4: Simplify right side
    326,497.40x = 43,998,642,700.17
  5. Step 5: Solve for x
    x = 43,998,642,700.17/326,497.40
  6. Step 6: Final answer
    x = 134,759.55

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Similar ratio
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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.