Home / 1,489,805.20-2,234,707.80-543,206.80

Finding the Fourth Proportional to 1,489,805.20, 2,234,707.80 and 543,206.80

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Solution

The fourth proportional to 1,489,805.20, 2,234,707.80 and 543,206.80 is: 814,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,805.20 : 2,234,707.80 = 543,206.80 : x
  2. Step 2: Convert to fraction form
    1,489,805.20/2,234,707.80 = 543,206.80/x
  3. Step 3: Cross multiply
    1,489,805.20x = 2,234,707.80 × 543,206.80
  4. Step 4: Simplify right side
    1,489,805.20x = 1,213,908,472,973.04
  5. Step 5: Solve for x
    x = 1,213,908,472,973.04/1,489,805.20
  6. Step 6: Final answer
    x = 814,810.20

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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.