Home / 1,107,720.80-1,661,581.20-359,842.40

Finding the Fourth Proportional to 1,107,720.80, 1,661,581.20 and 359,842.40

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Solution

The fourth proportional to 1,107,720.80, 1,661,581.20 and 359,842.40 is: 539,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,720.80 : 1,661,581.20 = 359,842.40 : x
  2. Step 2: Convert to fraction form
    1,107,720.80/1,661,581.20 = 359,842.40/x
  3. Step 3: Cross multiply
    1,107,720.80x = 1,661,581.20 × 359,842.40
  4. Step 4: Simplify right side
    1,107,720.80x = 597,907,366,802.88
  5. Step 5: Solve for x
    x = 597,907,366,802.88/1,107,720.80
  6. Step 6: Final answer
    x = 539,763.60

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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.