Home / 820,229.02-1,230,336.15-259,263.70

Finding the Fourth Proportional to 820,229.02, 1,230,336.15 and 259,263.70

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Solution

The fourth proportional to 820,229.02, 1,230,336.15 and 259,263.70 is: 388,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,229.02 : 1,230,336.15 = 259,263.70 : x
  2. Step 2: Convert to fraction form
    820,229.02/1,230,336.15 = 259,263.70/x
  3. Step 3: Cross multiply
    820,229.02x = 1,230,336.15 × 259,263.70
  4. Step 4: Simplify right side
    820,229.02x = 318,981,502,492.76
  5. Step 5: Solve for x
    x = 318,981,502,492.76/820,229.02
  6. Step 6: Final answer
    x = 388,893.22

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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.