Home / 1,120,150.20-1,680,225.30-805,222.20

Finding the Fourth Proportional to 1,120,150.20, 1,680,225.30 and 805,222.20

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Solution

The fourth proportional to 1,120,150.20, 1,680,225.30 and 805,222.20 is: 1,207,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,150.20 : 1,680,225.30 = 805,222.20 : x
  2. Step 2: Convert to fraction form
    1,120,150.20/1,680,225.30 = 805,222.20/x
  3. Step 3: Cross multiply
    1,120,150.20x = 1,680,225.30 × 805,222.20
  4. Step 4: Simplify right side
    1,120,150.20x = 1,352,954,712,561.66
  5. Step 5: Solve for x
    x = 1,352,954,712,561.66/1,120,150.20
  6. Step 6: Final answer
    x = 1,207,833.30

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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.