Home / 1,431,380.72-1,975,293.74-786,794.06

Finding the Fourth Proportional to 1,431,380.72, 1,975,293.74 and 786,794.06

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Solution

The fourth proportional to 1,431,380.72, 1,975,293.74 and 786,794.06 is: 1,085,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,380.72 : 1,975,293.74 = 786,794.06 : x
  2. Step 2: Convert to fraction form
    1,431,380.72/1,975,293.74 = 786,794.06/x
  3. Step 3: Cross multiply
    1,431,380.72x = 1,975,293.74 × 786,794.06
  4. Step 4: Simplify right side
    1,431,380.72x = 1,554,149,381,387.18
  5. Step 5: Solve for x
    x = 1,554,149,381,387.18/1,431,380.72
  6. Step 6: Final answer
    x = 1,085,769.40

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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.