Home / 1,098,195.80-1,648,848.90-861,805.40

Finding the Fourth Proportional to 1,098,195.80, 1,648,848.90 and 861,805.40

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Solution

The fourth proportional to 1,098,195.80, 1,648,848.90 and 861,805.40 is: 1,293,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,195.80 : 1,648,848.90 = 861,805.40 : x
  2. Step 2: Convert to fraction form
    1,098,195.80/1,648,848.90 = 861,805.40/x
  3. Step 3: Cross multiply
    1,098,195.80x = 1,648,848.90 × 861,805.40
  4. Step 4: Simplify right side
    1,098,195.80x = 1,420,986,885,804.06
  5. Step 5: Solve for x
    x = 1,420,986,885,804.06/1,098,195.80
  6. Step 6: Final answer
    x = 1,293,928.54

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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.