Home / 771,474.39-1,157,396.27-321,945.18

Finding the Fourth Proportional to 771,474.39, 1,157,396.27 and 321,945.18

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Solution

The fourth proportional to 771,474.39, 1,157,396.27 and 321,945.18 is: 482,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,474.39 : 1,157,396.27 = 321,945.18 : x
  2. Step 2: Convert to fraction form
    771,474.39/1,157,396.27 = 321,945.18/x
  3. Step 3: Cross multiply
    771,474.39x = 1,157,396.27 × 321,945.18
  4. Step 4: Simplify right side
    771,474.39x = 372,618,148,866.75
  5. Step 5: Solve for x
    x = 372,618,148,866.75/771,474.39
  6. Step 6: Final answer
    x = 482,994.84

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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.