Home / 786,382.50-1,179,274.01-280,849.08

Finding the Fourth Proportional to 786,382.50, 1,179,274.01 and 280,849.08

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Solution

The fourth proportional to 786,382.50, 1,179,274.01 and 280,849.08 is: 421,166.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,382.50 : 1,179,274.01 = 280,849.08 : x
  2. Step 2: Convert to fraction form
    786,382.50/1,179,274.01 = 280,849.08/x
  3. Step 3: Cross multiply
    786,382.50x = 1,179,274.01 × 280,849.08
  4. Step 4: Simplify right side
    786,382.50x = 331,198,019,372.17
  5. Step 5: Solve for x
    x = 331,198,019,372.17/786,382.50
  6. Step 6: Final answer
    x = 421,166.57

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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.