Home / 1,943,133.30-2,912,561.55-680,310.90

Finding the Fourth Proportional to 1,943,133.30, 2,912,561.55 and 680,310.90

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Solution

The fourth proportional to 1,943,133.30, 2,912,561.55 and 680,310.90 is: 1,019,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,133.30 : 2,912,561.55 = 680,310.90 : x
  2. Step 2: Convert to fraction form
    1,943,133.30/2,912,561.55 = 680,310.90/x
  3. Step 3: Cross multiply
    1,943,133.30x = 2,912,561.55 × 680,310.90
  4. Step 4: Simplify right side
    1,943,133.30x = 1,981,447,369,385.90
  5. Step 5: Solve for x
    x = 1,981,447,369,385.90/1,943,133.30
  6. Step 6: Final answer
    x = 1,019,717.67

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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.