Home / 756,528.86-1,135,052.53-258,242.78

Finding the Fourth Proportional to 756,528.86, 1,135,052.53 and 258,242.78

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Solution

The fourth proportional to 756,528.86, 1,135,052.53 and 258,242.78 is: 387,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,528.86 : 1,135,052.53 = 258,242.78 : x
  2. Step 2: Convert to fraction form
    756,528.86/1,135,052.53 = 258,242.78/x
  3. Step 3: Cross multiply
    756,528.86x = 1,135,052.53 × 258,242.78
  4. Step 4: Simplify right side
    756,528.86x = 293,119,120,793.23
  5. Step 5: Solve for x
    x = 293,119,120,793.23/756,528.86
  6. Step 6: Final answer
    x = 387,452.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.