Home / 758,571.32-1,138,023.28-285,256.52

Finding the Fourth Proportional to 758,571.32, 1,138,023.28 and 285,256.52

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Solution

The fourth proportional to 758,571.32, 1,138,023.28 and 285,256.52 is: 427,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,571.32 : 1,138,023.28 = 285,256.52 : x
  2. Step 2: Convert to fraction form
    758,571.32/1,138,023.28 = 285,256.52/x
  3. Step 3: Cross multiply
    758,571.32x = 1,138,023.28 × 285,256.52
  4. Step 4: Simplify right side
    758,571.32x = 324,628,560,531.79
  5. Step 5: Solve for x
    x = 324,628,560,531.79/758,571.32
  6. Step 6: Final answer
    x = 427,947.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.