Home / 1,083,857.20-1,626,707.40-485,738.80

Finding the Fourth Proportional to 1,083,857.20, 1,626,707.40 and 485,738.80

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Solution

The fourth proportional to 1,083,857.20, 1,626,707.40 and 485,738.80 is: 729,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,857.20 : 1,626,707.40 = 485,738.80 : x
  2. Step 2: Convert to fraction form
    1,083,857.20/1,626,707.40 = 485,738.80/x
  3. Step 3: Cross multiply
    1,083,857.20x = 1,626,707.40 × 485,738.80
  4. Step 4: Simplify right side
    1,083,857.20x = 790,154,900,427.12
  5. Step 5: Solve for x
    x = 790,154,900,427.12/1,083,857.20
  6. Step 6: Final answer
    x = 729,021.22

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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.