Home / 776,968.86-1,165,453.29-278,682.78

Finding the Fourth Proportional to 776,968.86, 1,165,453.29 and 278,682.78

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Solution

The fourth proportional to 776,968.86, 1,165,453.29 and 278,682.78 is: 418,024.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,968.86 : 1,165,453.29 = 278,682.78 : x
  2. Step 2: Convert to fraction form
    776,968.86/1,165,453.29 = 278,682.78/x
  3. Step 3: Cross multiply
    776,968.86x = 1,165,453.29 × 278,682.78
  4. Step 4: Simplify right side
    776,968.86x = 324,791,762,817.35
  5. Step 5: Solve for x
    x = 324,791,762,817.35/776,968.86
  6. Step 6: Final answer
    x = 418,024.17

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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.