Home / 1,190,474.28-1,642,866.57-646,620.71

Finding the Fourth Proportional to 1,190,474.28, 1,642,866.57 and 646,620.71

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Solution

The fourth proportional to 1,190,474.28, 1,642,866.57 and 646,620.71 is: 892,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,474.28 : 1,642,866.57 = 646,620.71 : x
  2. Step 2: Convert to fraction form
    1,190,474.28/1,642,866.57 = 646,620.71/x
  3. Step 3: Cross multiply
    1,190,474.28x = 1,642,866.57 × 646,620.71
  4. Step 4: Simplify right side
    1,190,474.28x = 1,062,311,539,714.33
  5. Step 5: Solve for x
    x = 1,062,311,539,714.33/1,190,474.28
  6. Step 6: Final answer
    x = 892,343.13

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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.