Home / 820,492.89-1,230,102.06-531,694.45

Finding the Fourth Proportional to 820,492.89, 1,230,102.06 and 531,694.45

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Solution

The fourth proportional to 820,492.89, 1,230,102.06 and 531,694.45 is: 797,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,492.89 : 1,230,102.06 = 531,694.45 : x
  2. Step 2: Convert to fraction form
    820,492.89/1,230,102.06 = 531,694.45/x
  3. Step 3: Cross multiply
    820,492.89x = 1,230,102.06 × 531,694.45
  4. Step 4: Simplify right side
    820,492.89x = 654,038,438,235.57
  5. Step 5: Solve for x
    x = 654,038,438,235.57/820,492.89
  6. Step 6: Final answer
    x = 797,128.71

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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.