Home / 775,873.80-1,071,378.63-572,277.60

Finding the Fourth Proportional to 775,873.80, 1,071,378.63 and 572,277.60

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Solution

The fourth proportional to 775,873.80, 1,071,378.63 and 572,277.60 is: 790,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,873.80 : 1,071,378.63 = 572,277.60 : x
  2. Step 2: Convert to fraction form
    775,873.80/1,071,378.63 = 572,277.60/x
  3. Step 3: Cross multiply
    775,873.80x = 1,071,378.63 × 572,277.60
  4. Step 4: Simplify right side
    775,873.80x = 613,125,991,067.69
  5. Step 5: Solve for x
    x = 613,125,991,067.69/775,873.80
  6. Step 6: Final answer
    x = 790,239.33

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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.