Home / 815,862.65-1,223,794.44-310,306.95

Finding the Fourth Proportional to 815,862.65, 1,223,794.44 and 310,306.95

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Solution

The fourth proportional to 815,862.65, 1,223,794.44 and 310,306.95 is: 465,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,862.65 : 1,223,794.44 = 310,306.95 : x
  2. Step 2: Convert to fraction form
    815,862.65/1,223,794.44 = 310,306.95/x
  3. Step 3: Cross multiply
    815,862.65x = 1,223,794.44 × 310,306.95
  4. Step 4: Simplify right side
    815,862.65x = 379,751,920,103.36
  5. Step 5: Solve for x
    x = 379,751,920,103.36/815,862.65
  6. Step 6: Final answer
    x = 465,460.60

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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.