Home / 998,078.98-1,377,377.31-556,563.64

Finding the Fourth Proportional to 998,078.98, 1,377,377.31 and 556,563.64

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Solution

The fourth proportional to 998,078.98, 1,377,377.31 and 556,563.64 is: 768,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,078.98 : 1,377,377.31 = 556,563.64 : x
  2. Step 2: Convert to fraction form
    998,078.98/1,377,377.31 = 556,563.64/x
  3. Step 3: Cross multiply
    998,078.98x = 1,377,377.31 × 556,563.64
  4. Step 4: Simplify right side
    998,078.98x = 766,598,129,307.01
  5. Step 5: Solve for x
    x = 766,598,129,307.01/998,078.98
  6. Step 6: Final answer
    x = 768,073.61

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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.