Home / 914,286.41-1,371,519.75-315,168.70

Finding the Fourth Proportional to 914,286.41, 1,371,519.75 and 315,168.70

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Solution

The fourth proportional to 914,286.41, 1,371,519.75 and 315,168.70 is: 472,784.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,286.41 : 1,371,519.75 = 315,168.70 : x
  2. Step 2: Convert to fraction form
    914,286.41/1,371,519.75 = 315,168.70/x
  3. Step 3: Cross multiply
    914,286.41x = 1,371,519.75 × 315,168.70
  4. Step 4: Simplify right side
    914,286.41x = 432,260,096,631.83
  5. Step 5: Solve for x
    x = 432,260,096,631.83/914,286.41
  6. Step 6: Final answer
    x = 472,784.12

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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.