Home / 1,261,995.10-1,892,992.65-978,559.90

Finding the Fourth Proportional to 1,261,995.10, 1,892,992.65 and 978,559.90

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Solution

The fourth proportional to 1,261,995.10, 1,892,992.65 and 978,559.90 is: 1,467,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,995.10 : 1,892,992.65 = 978,559.90 : x
  2. Step 2: Convert to fraction form
    1,261,995.10/1,892,992.65 = 978,559.90/x
  3. Step 3: Cross multiply
    1,261,995.10x = 1,892,992.65 × 978,559.90
  4. Step 4: Simplify right side
    1,261,995.10x = 1,852,406,698,284.74
  5. Step 5: Solve for x
    x = 1,852,406,698,284.74/1,261,995.10
  6. Step 6: Final answer
    x = 1,467,839.85

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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.