Home / 775,993.20-1,070,854.75-485,764.83

Finding the Fourth Proportional to 775,993.20, 1,070,854.75 and 485,764.83

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Solution

The fourth proportional to 775,993.20, 1,070,854.75 and 485,764.83 is: 670,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,993.20 : 1,070,854.75 = 485,764.83 : x
  2. Step 2: Convert to fraction form
    775,993.20/1,070,854.75 = 485,764.83/x
  3. Step 3: Cross multiply
    775,993.20x = 1,070,854.75 × 485,764.83
  4. Step 4: Simplify right side
    775,993.20x = 520,183,573,159.62
  5. Step 5: Solve for x
    x = 520,183,573,159.62/775,993.20
  6. Step 6: Final answer
    x = 670,345.53

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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.