Home / 753,780-1,131,188.40-310,548

Finding the Fourth Proportional to 753,780, 1,131,188.40 and 310,548

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Solution

The fourth proportional to 753,780, 1,131,188.40 and 310,548 is: 466,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,780 : 1,131,188.40 = 310,548 : x
  2. Step 2: Convert to fraction form
    753,780/1,131,188.40 = 310,548/x
  3. Step 3: Cross multiply
    753,780x = 1,131,188.40 × 310,548
  4. Step 4: Simplify right side
    753,780x = 351,288,295,243.20
  5. Step 5: Solve for x
    x = 351,288,295,243.20/753,780
  6. Step 6: Final answer
    x = 466,035.57

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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.