Home / 830,404.30-1,245,606.45-269,438.80

Finding the Fourth Proportional to 830,404.30, 1,245,606.45 and 269,438.80

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Solution

The fourth proportional to 830,404.30, 1,245,606.45 and 269,438.80 is: 404,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,404.30 : 1,245,606.45 = 269,438.80 : x
  2. Step 2: Convert to fraction form
    830,404.30/1,245,606.45 = 269,438.80/x
  3. Step 3: Cross multiply
    830,404.30x = 1,245,606.45 × 269,438.80
  4. Step 4: Simplify right side
    830,404.30x = 335,614,707,160.26
  5. Step 5: Solve for x
    x = 335,614,707,160.26/830,404.30
  6. Step 6: Final answer
    x = 404,158.20

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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.