Home / 1,109,619.50-1,531,187.69-679,841.19

Finding the Fourth Proportional to 1,109,619.50, 1,531,187.69 and 679,841.19

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Solution

The fourth proportional to 1,109,619.50, 1,531,187.69 and 679,841.19 is: 938,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,619.50 : 1,531,187.69 = 679,841.19 : x
  2. Step 2: Convert to fraction form
    1,109,619.50/1,531,187.69 = 679,841.19/x
  3. Step 3: Cross multiply
    1,109,619.50x = 1,531,187.69 × 679,841.19
  4. Step 4: Simplify right side
    1,109,619.50x = 1,040,964,457,883.75
  5. Step 5: Solve for x
    x = 1,040,964,457,883.75/1,109,619.50
  6. Step 6: Final answer
    x = 938,127.41

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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.