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Finding the Fourth Proportional to 389,340.50, 536,803.08 and 324,902.57

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Solution

The fourth proportional to 389,340.50, 536,803.08 and 324,902.57 is: 447,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,340.50 : 536,803.08 = 324,902.57 : x
  2. Step 2: Convert to fraction form
    389,340.50/536,803.08 = 324,902.57/x
  3. Step 3: Cross multiply
    389,340.50x = 536,803.08 × 324,902.57
  4. Step 4: Simplify right side
    389,340.50x = 174,408,700,275.92
  5. Step 5: Solve for x
    x = 174,408,700,275.92/389,340.50
  6. Step 6: Final answer
    x = 447,959.31

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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.