Home / 1,190,475.28-1,642,867.95-646,621.71

Finding the Fourth Proportional to 1,190,475.28, 1,642,867.95 and 646,621.71

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Solution

The fourth proportional to 1,190,475.28, 1,642,867.95 and 646,621.71 is: 892,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,475.28 : 1,642,867.95 = 646,621.71 : x
  2. Step 2: Convert to fraction form
    1,190,475.28/1,642,867.95 = 646,621.71/x
  3. Step 3: Cross multiply
    1,190,475.28x = 1,642,867.95 × 646,621.71
  4. Step 4: Simplify right side
    1,190,475.28x = 1,062,314,083,133.19
  5. Step 5: Solve for x
    x = 1,062,314,083,133.19/1,190,475.28
  6. Step 6: Final answer
    x = 892,344.51

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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.