Home / 813,956.29-1,220,768.17-308,342.95

Finding the Fourth Proportional to 813,956.29, 1,220,768.17 and 308,342.95

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Solution

The fourth proportional to 813,956.29, 1,220,768.17 and 308,342.95 is: 462,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,956.29 : 1,220,768.17 = 308,342.95 : x
  2. Step 2: Convert to fraction form
    813,956.29/1,220,768.17 = 308,342.95/x
  3. Step 3: Cross multiply
    813,956.29x = 1,220,768.17 × 308,342.95
  4. Step 4: Simplify right side
    813,956.29x = 376,415,258,803.90
  5. Step 5: Solve for x
    x = 376,415,258,803.90/813,956.29
  6. Step 6: Final answer
    x = 462,451.44

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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.