Home / 771,453.70-1,157,365.22-321,924.48

Finding the Fourth Proportional to 771,453.70, 1,157,365.22 and 321,924.48

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Solution

The fourth proportional to 771,453.70, 1,157,365.22 and 321,924.48 is: 482,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,453.70 : 1,157,365.22 = 321,924.48 : x
  2. Step 2: Convert to fraction form
    771,453.70/1,157,365.22 = 321,924.48/x
  3. Step 3: Cross multiply
    771,453.70x = 1,157,365.22 × 321,924.48
  4. Step 4: Simplify right side
    771,453.70x = 372,584,196,618.59
  5. Step 5: Solve for x
    x = 372,584,196,618.59/771,453.70
  6. Step 6: Final answer
    x = 482,963.78

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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.