Home / 1,110,142.47-1,532,033.76-680,339.60

Finding the Fourth Proportional to 1,110,142.47, 1,532,033.76 and 680,339.60

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Solution

The fourth proportional to 1,110,142.47, 1,532,033.76 and 680,339.60 is: 938,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,142.47 : 1,532,033.76 = 680,339.60 : x
  2. Step 2: Convert to fraction form
    1,110,142.47/1,532,033.76 = 680,339.60/x
  3. Step 3: Cross multiply
    1,110,142.47x = 1,532,033.76 × 680,339.60
  4. Step 4: Simplify right side
    1,110,142.47x = 1,042,303,235,464.90
  5. Step 5: Solve for x
    x = 1,042,303,235,464.90/1,110,142.47
  6. Step 6: Final answer
    x = 938,891.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.