Home / 1,275,694.92-1,912,580.23-770,135.74

Finding the Fourth Proportional to 1,275,694.92, 1,912,580.23 and 770,135.74

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Solution

The fourth proportional to 1,275,694.92, 1,912,580.23 and 770,135.74 is: 1,154,622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,694.92 : 1,912,580.23 = 770,135.74 : x
  2. Step 2: Convert to fraction form
    1,275,694.92/1,912,580.23 = 770,135.74/x
  3. Step 3: Cross multiply
    1,275,694.92x = 1,912,580.23 × 770,135.74
  4. Step 4: Simplify right side
    1,275,694.92x = 1,472,946,390,740.42
  5. Step 5: Solve for x
    x = 1,472,946,390,740.42/1,275,694.92
  6. Step 6: Final answer
    x = 1,154,622.76

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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.