Home / 1,351,923-1,865,858.66-771,143.28

Finding the Fourth Proportional to 1,351,923, 1,865,858.66 and 771,143.28

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Solution

The fourth proportional to 1,351,923, 1,865,858.66 and 771,143.28 is: 1,064,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,923 : 1,865,858.66 = 771,143.28 : x
  2. Step 2: Convert to fraction form
    1,351,923/1,865,858.66 = 771,143.28/x
  3. Step 3: Cross multiply
    1,351,923x = 1,865,858.66 × 771,143.28
  4. Step 4: Simplify right side
    1,351,923x = 1,438,844,367,088.80
  5. Step 5: Solve for x
    x = 1,438,844,367,088.80/1,351,923
  6. Step 6: Final answer
    x = 1,064,294.61

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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.