Home / 771,444.09-1,157,350.89-321,914.90

Finding the Fourth Proportional to 771,444.09, 1,157,350.89 and 321,914.90

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Solution

The fourth proportional to 771,444.09, 1,157,350.89 and 321,914.90 is: 482,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,444.09 : 1,157,350.89 = 321,914.90 : x
  2. Step 2: Convert to fraction form
    771,444.09/1,157,350.89 = 321,914.90/x
  3. Step 3: Cross multiply
    771,444.09x = 1,157,350.89 × 321,914.90
  4. Step 4: Simplify right side
    771,444.09x = 372,568,490,232.51
  5. Step 5: Solve for x
    x = 372,568,490,232.51/771,444.09
  6. Step 6: Final answer
    x = 482,949.44

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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.