Home / 775,995.83-1,070,858.37-485,767.43

Finding the Fourth Proportional to 775,995.83, 1,070,858.37 and 485,767.43

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Solution

The fourth proportional to 775,995.83, 1,070,858.37 and 485,767.43 is: 670,349.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,995.83 : 1,070,858.37 = 485,767.43 : x
  2. Step 2: Convert to fraction form
    775,995.83/1,070,858.37 = 485,767.43/x
  3. Step 3: Cross multiply
    775,995.83x = 1,070,858.37 × 485,767.43
  4. Step 4: Simplify right side
    775,995.83x = 520,188,118,771.94
  5. Step 5: Solve for x
    x = 520,188,118,771.94/775,995.83
  6. Step 6: Final answer
    x = 670,349.12

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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.