Home / 1,294,834-1,786,850.40-721,909.12

Finding the Fourth Proportional to 1,294,834, 1,786,850.40 and 721,909.12

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Solution

The fourth proportional to 1,294,834, 1,786,850.40 and 721,909.12 is: 996,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,834 : 1,786,850.40 = 721,909.12 : x
  2. Step 2: Convert to fraction form
    1,294,834/1,786,850.40 = 721,909.12/x
  3. Step 3: Cross multiply
    1,294,834x = 1,786,850.40 × 721,909.12
  4. Step 4: Simplify right side
    1,294,834x = 1,289,943,599,835.65
  5. Step 5: Solve for x
    x = 1,289,943,599,835.65/1,294,834
  6. Step 6: Final answer
    x = 996,223.15

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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.