Home / 1,186,959.28-1,780,511.28-388,325.20

Finding the Fourth Proportional to 1,186,959.28, 1,780,511.28 and 388,325.20

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Solution

The fourth proportional to 1,186,959.28, 1,780,511.28 and 388,325.20 is: 582,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,959.28 : 1,780,511.28 = 388,325.20 : x
  2. Step 2: Convert to fraction form
    1,186,959.28/1,780,511.28 = 388,325.20/x
  3. Step 3: Cross multiply
    1,186,959.28x = 1,780,511.28 × 388,325.20
  4. Step 4: Simplify right side
    1,186,959.28x = 691,417,398,908.26
  5. Step 5: Solve for x
    x = 691,417,398,908.26/1,186,959.28
  6. Step 6: Final answer
    x = 582,511.47

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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.