Home / 1,431,087.44-1,974,948.01-786,530.48

Finding the Fourth Proportional to 1,431,087.44, 1,974,948.01 and 786,530.48

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Solution

The fourth proportional to 1,431,087.44, 1,974,948.01 and 786,530.48 is: 1,085,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,087.44 : 1,974,948.01 = 786,530.48 : x
  2. Step 2: Convert to fraction form
    1,431,087.44/1,974,948.01 = 786,530.48/x
  3. Step 3: Cross multiply
    1,431,087.44x = 1,974,948.01 × 786,530.48
  4. Step 4: Simplify right side
    1,431,087.44x = 1,553,356,794,439.28
  5. Step 5: Solve for x
    x = 1,553,356,794,439.28/1,431,087.44
  6. Step 6: Final answer
    x = 1,085,438.08

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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.