Home / 1,207,427.20-1,811,140.80-320,963.20

Finding the Fourth Proportional to 1,207,427.20, 1,811,140.80 and 320,963.20

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Solution

The fourth proportional to 1,207,427.20, 1,811,140.80 and 320,963.20 is: 481,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,427.20 : 1,811,140.80 = 320,963.20 : x
  2. Step 2: Convert to fraction form
    1,207,427.20/1,811,140.80 = 320,963.20/x
  3. Step 3: Cross multiply
    1,207,427.20x = 1,811,140.80 × 320,963.20
  4. Step 4: Simplify right side
    1,207,427.20x = 581,309,546,818.56
  5. Step 5: Solve for x
    x = 581,309,546,818.56/1,207,427.20
  6. Step 6: Final answer
    x = 481,444.80

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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.