Home / 1,380,375.20-2,071,729.20-539,530.40

Finding the Fourth Proportional to 1,380,375.20, 2,071,729.20 and 539,530.40

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Solution

The fourth proportional to 1,380,375.20, 2,071,729.20 and 539,530.40 is: 809,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,375.20 : 2,071,729.20 = 539,530.40 : x
  2. Step 2: Convert to fraction form
    1,380,375.20/2,071,729.20 = 539,530.40/x
  3. Step 3: Cross multiply
    1,380,375.20x = 2,071,729.20 × 539,530.40
  4. Step 4: Simplify right side
    1,380,375.20x = 1,117,760,883,967.68
  5. Step 5: Solve for x
    x = 1,117,760,883,967.68/1,380,375.20
  6. Step 6: Final answer
    x = 809,751.50

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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.