Home / 1,420,501.74-1,960,217.46-775,912.65

Finding the Fourth Proportional to 1,420,501.74, 1,960,217.46 and 775,912.65

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Solution

The fourth proportional to 1,420,501.74, 1,960,217.46 and 775,912.65 is: 1,070,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,501.74 : 1,960,217.46 = 775,912.65 : x
  2. Step 2: Convert to fraction form
    1,420,501.74/1,960,217.46 = 775,912.65/x
  3. Step 3: Cross multiply
    1,420,501.74x = 1,960,217.46 × 775,912.65
  4. Step 4: Simplify right side
    1,420,501.74x = 1,520,957,523,964.87
  5. Step 5: Solve for x
    x = 1,520,957,523,964.87/1,420,501.74
  6. Step 6: Final answer
    x = 1,070,718.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.