Home / 815,424.30-1,223,136.45-807,551.10

Finding the Fourth Proportional to 815,424.30, 1,223,136.45 and 807,551.10

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Solution

The fourth proportional to 815,424.30, 1,223,136.45 and 807,551.10 is: 1,211,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,424.30 : 1,223,136.45 = 807,551.10 : x
  2. Step 2: Convert to fraction form
    815,424.30/1,223,136.45 = 807,551.10/x
  3. Step 3: Cross multiply
    815,424.30x = 1,223,136.45 × 807,551.10
  4. Step 4: Simplify right side
    815,424.30x = 987,745,185,647.60
  5. Step 5: Solve for x
    x = 987,745,185,647.60/815,424.30
  6. Step 6: Final answer
    x = 1,211,326.65

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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.