Home / 782,137.24-1,079,349.40-424,441.24

Finding the Fourth Proportional to 782,137.24, 1,079,349.40 and 424,441.24

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Solution

The fourth proportional to 782,137.24, 1,079,349.40 and 424,441.24 is: 585,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,137.24 : 1,079,349.40 = 424,441.24 : x
  2. Step 2: Convert to fraction form
    782,137.24/1,079,349.40 = 424,441.24/x
  3. Step 3: Cross multiply
    782,137.24x = 1,079,349.40 × 424,441.24
  4. Step 4: Simplify right side
    782,137.24x = 458,120,397,729.26
  5. Step 5: Solve for x
    x = 458,120,397,729.26/782,137.24
  6. Step 6: Final answer
    x = 585,728.92

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1.5x scale

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.