Home / 777,923.20-1,165,329.60-445,110.40

Finding the Fourth Proportional to 777,923.20, 1,165,329.60 and 445,110.40

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Solution

The fourth proportional to 777,923.20, 1,165,329.60 and 445,110.40 is: 666,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,923.20 : 1,165,329.60 = 445,110.40 : x
  2. Step 2: Convert to fraction form
    777,923.20/1,165,329.60 = 445,110.40/x
  3. Step 3: Cross multiply
    777,923.20x = 1,165,329.60 × 445,110.40
  4. Step 4: Simplify right side
    777,923.20x = 518,700,324,387.84
  5. Step 5: Solve for x
    x = 518,700,324,387.84/777,923.20
  6. Step 6: Final answer
    x = 666,775.75

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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.