Home / 665,766.49-918,739.30-375,375.52

Finding the Fourth Proportional to 665,766.49, 918,739.30 and 375,375.52

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Solution

The fourth proportional to 665,766.49, 918,739.30 and 375,375.52 is: 518,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,766.49 : 918,739.30 = 375,375.52 : x
  2. Step 2: Convert to fraction form
    665,766.49/918,739.30 = 375,375.52/x
  3. Step 3: Cross multiply
    665,766.49x = 918,739.30 × 375,375.52
  4. Step 4: Simplify right side
    665,766.49x = 344,872,242,481.94
  5. Step 5: Solve for x
    x = 344,872,242,481.94/665,766.49
  6. Step 6: Final answer
    x = 518,007.81

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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.