Home / 775,992.70-1,070,854.06-485,764.33

Finding the Fourth Proportional to 775,992.70, 1,070,854.06 and 485,764.33

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Solution

The fourth proportional to 775,992.70, 1,070,854.06 and 485,764.33 is: 670,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,992.70 : 1,070,854.06 = 485,764.33 : x
  2. Step 2: Convert to fraction form
    775,992.70/1,070,854.06 = 485,764.33/x
  3. Step 3: Cross multiply
    775,992.70x = 1,070,854.06 × 485,764.33
  4. Step 4: Simplify right side
    775,992.70x = 520,182,702,554.86
  5. Step 5: Solve for x
    x = 520,182,702,554.86/775,992.70
  6. Step 6: Final answer
    x = 670,344.84

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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.