Home / 1,431,176.96-1,975,022.88-786,638.72

Finding the Fourth Proportional to 1,431,176.96, 1,975,022.88 and 786,638.72

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Solution

The fourth proportional to 1,431,176.96, 1,975,022.88 and 786,638.72 is: 1,085,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,176.96 : 1,975,022.88 = 786,638.72 : x
  2. Step 2: Convert to fraction form
    1,431,176.96/1,975,022.88 = 786,638.72/x
  3. Step 3: Cross multiply
    1,431,176.96x = 1,975,022.88 × 786,638.72
  4. Step 4: Simplify right side
    1,431,176.96x = 1,553,629,470,293.91
  5. Step 5: Solve for x
    x = 1,553,629,470,293.91/1,431,176.96
  6. Step 6: Final answer
    x = 1,085,560.71

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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.