Home / 775,943.73-1,070,949.74-485,689.95

Finding the Fourth Proportional to 775,943.73, 1,070,949.74 and 485,689.95

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Solution

The fourth proportional to 775,943.73, 1,070,949.74 and 485,689.95 is: 670,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,943.73 : 1,070,949.74 = 485,689.95 : x
  2. Step 2: Convert to fraction form
    775,943.73/1,070,949.74 = 485,689.95/x
  3. Step 3: Cross multiply
    775,943.73x = 1,070,949.74 × 485,689.95
  4. Step 4: Simplify right side
    775,943.73x = 520,149,523,244.66
  5. Step 5: Solve for x
    x = 520,149,523,244.66/775,943.73
  6. Step 6: Final answer
    x = 670,344.39

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Double scale
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1.5x scale

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.