Home / 1,494,172.89-2,061,955.98-815,109.39

Finding the Fourth Proportional to 1,494,172.89, 2,061,955.98 and 815,109.39

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Solution

The fourth proportional to 1,494,172.89, 2,061,955.98 and 815,109.39 is: 1,124,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494,172.89 : 2,061,955.98 = 815,109.39 : x
  2. Step 2: Convert to fraction form
    1,494,172.89/2,061,955.98 = 815,109.39/x
  3. Step 3: Cross multiply
    1,494,172.89x = 2,061,955.98 × 815,109.39
  4. Step 4: Simplify right side
    1,494,172.89x = 1,680,719,681,064.65
  5. Step 5: Solve for x
    x = 1,680,719,681,064.65/1,494,172.89
  6. Step 6: Final answer
    x = 1,124,849.54

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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.