Home / 1,078,498.25-1,488,866.90-670,731.45

Finding the Fourth Proportional to 1,078,498.25, 1,488,866.90 and 670,731.45

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Solution

The fourth proportional to 1,078,498.25, 1,488,866.90 and 670,731.45 is: 925,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,498.25 : 1,488,866.90 = 670,731.45 : x
  2. Step 2: Convert to fraction form
    1,078,498.25/1,488,866.90 = 670,731.45/x
  3. Step 3: Cross multiply
    1,078,498.25x = 1,488,866.90 × 670,731.45
  4. Step 4: Simplify right side
    1,078,498.25x = 998,629,854,694.01
  5. Step 5: Solve for x
    x = 998,629,854,694.01/1,078,498.25
  6. Step 6: Final answer
    x = 925,944.81

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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.