Home / 1,211,375.20-1,817,062.80-1,132,643.20

Finding the Fourth Proportional to 1,211,375.20, 1,817,062.80 and 1,132,643.20

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Solution

The fourth proportional to 1,211,375.20, 1,817,062.80 and 1,132,643.20 is: 1,698,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,375.20 : 1,817,062.80 = 1,132,643.20 : x
  2. Step 2: Convert to fraction form
    1,211,375.20/1,817,062.80 = 1,132,643.20/x
  3. Step 3: Cross multiply
    1,211,375.20x = 1,817,062.80 × 1,132,643.20
  4. Step 4: Simplify right side
    1,211,375.20x = 2,058,083,824,392.96
  5. Step 5: Solve for x
    x = 2,058,083,824,392.96/1,211,375.20
  6. Step 6: Final answer
    x = 1,698,964.80

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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.