Home / 1,229,642.40-1,844,308.08-388,279.20

Finding the Fourth Proportional to 1,229,642.40, 1,844,308.08 and 388,279.20

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Solution

The fourth proportional to 1,229,642.40, 1,844,308.08 and 388,279.20 is: 582,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,642.40 : 1,844,308.08 = 388,279.20 : x
  2. Step 2: Convert to fraction form
    1,229,642.40/1,844,308.08 = 388,279.20/x
  3. Step 3: Cross multiply
    1,229,642.40x = 1,844,308.08 × 388,279.20
  4. Step 4: Simplify right side
    1,229,642.40x = 716,106,465,855.94
  5. Step 5: Solve for x
    x = 716,106,465,855.94/1,229,642.40
  6. Step 6: Final answer
    x = 582,369.69

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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.