Home / 1,431,481-1,975,468.74-786,928.36

Finding the Fourth Proportional to 1,431,481, 1,975,468.74 and 786,928.36

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Solution

The fourth proportional to 1,431,481, 1,975,468.74 and 786,928.36 is: 1,085,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,481 : 1,975,468.74 = 786,928.36 : x
  2. Step 2: Convert to fraction form
    1,431,481/1,975,468.74 = 786,928.36/x
  3. Step 3: Cross multiply
    1,431,481x = 1,975,468.74 × 786,928.36
  4. Step 4: Simplify right side
    1,431,481x = 1,554,552,375,799.47
  5. Step 5: Solve for x
    x = 1,554,552,375,799.47/1,431,481
  6. Step 6: Final answer
    x = 1,085,974.86

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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.