Home / 775,944.73-1,070,951.12-485,690.95

Finding the Fourth Proportional to 775,944.73, 1,070,951.12 and 485,690.95

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Solution

The fourth proportional to 775,944.73, 1,070,951.12 and 485,690.95 is: 670,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,944.73 : 1,070,951.12 = 485,690.95 : x
  2. Step 2: Convert to fraction form
    775,944.73/1,070,951.12 = 485,690.95/x
  3. Step 3: Cross multiply
    775,944.73x = 1,070,951.12 × 485,690.95
  4. Step 4: Simplify right side
    775,944.73x = 520,151,266,876.36
  5. Step 5: Solve for x
    x = 520,151,266,876.36/775,944.73
  6. Step 6: Final answer
    x = 670,345.77

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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.