Home / 728,965.32-1,005,629.22-474,223.56

Finding the Fourth Proportional to 728,965.32, 1,005,629.22 and 474,223.56

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Solution

The fourth proportional to 728,965.32, 1,005,629.22 and 474,223.56 is: 654,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,965.32 : 1,005,629.22 = 474,223.56 : x
  2. Step 2: Convert to fraction form
    728,965.32/1,005,629.22 = 474,223.56/x
  3. Step 3: Cross multiply
    728,965.32x = 1,005,629.22 × 474,223.56
  4. Step 4: Simplify right side
    728,965.32x = 476,893,068,748.42
  5. Step 5: Solve for x
    x = 476,893,068,748.42/728,965.32
  6. Step 6: Final answer
    x = 654,205.43

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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.