Home / 720,334.20-1,080,688.10-383,097.54

Finding the Fourth Proportional to 720,334.20, 1,080,688.10 and 383,097.54

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Solution

The fourth proportional to 720,334.20, 1,080,688.10 and 383,097.54 is: 574,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,334.20 : 1,080,688.10 = 383,097.54 : x
  2. Step 2: Convert to fraction form
    720,334.20/1,080,688.10 = 383,097.54/x
  3. Step 3: Cross multiply
    720,334.20x = 1,080,688.10 × 383,097.54
  4. Step 4: Simplify right side
    720,334.20x = 414,008,952,617.27
  5. Step 5: Solve for x
    x = 414,008,952,617.27/720,334.20
  6. Step 6: Final answer
    x = 574,745.66

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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.