Home / 1,078,720.26-1,488,078.02-670,667.36

Finding the Fourth Proportional to 1,078,720.26, 1,488,078.02 and 670,667.36

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Solution

The fourth proportional to 1,078,720.26, 1,488,078.02 and 670,667.36 is: 925,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,720.26 : 1,488,078.02 = 670,667.36 : x
  2. Step 2: Convert to fraction form
    1,078,720.26/1,488,078.02 = 670,667.36/x
  3. Step 3: Cross multiply
    1,078,720.26x = 1,488,078.02 × 670,667.36
  4. Step 4: Simplify right side
    1,078,720.26x = 998,005,357,147.43
  5. Step 5: Solve for x
    x = 998,005,357,147.43/1,078,720.26
  6. Step 6: Final answer
    x = 925,175.32

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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.