Home / 1,443,873.21-1,992,568.57-790,488.28

Finding the Fourth Proportional to 1,443,873.21, 1,992,568.57 and 790,488.28

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Solution

The fourth proportional to 1,443,873.21, 1,992,568.57 and 790,488.28 is: 1,090,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,873.21 : 1,992,568.57 = 790,488.28 : x
  2. Step 2: Convert to fraction form
    1,443,873.21/1,992,568.57 = 790,488.28/x
  3. Step 3: Cross multiply
    1,443,873.21x = 1,992,568.57 × 790,488.28
  4. Step 4: Simplify right side
    1,443,873.21x = 1,575,102,101,681.36
  5. Step 5: Solve for x
    x = 1,575,102,101,681.36/1,443,873.21
  6. Step 6: Final answer
    x = 1,090,886.71

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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.