Home / 851,569.46-1,275,908.24-513,900.57

Finding the Fourth Proportional to 851,569.46, 1,275,908.24 and 513,900.57

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Solution

The fourth proportional to 851,569.46, 1,275,908.24 and 513,900.57 is: 769,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,569.46 : 1,275,908.24 = 513,900.57 : x
  2. Step 2: Convert to fraction form
    851,569.46/1,275,908.24 = 513,900.57/x
  3. Step 3: Cross multiply
    851,569.46x = 1,275,908.24 × 513,900.57
  4. Step 4: Simplify right side
    851,569.46x = 655,689,962,854.65
  5. Step 5: Solve for x
    x = 655,689,962,854.65/851,569.46
  6. Step 6: Final answer
    x = 769,978.25

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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.