Home / 457,128.75-630,839.48-266,273.31

Finding the Fourth Proportional to 457,128.75, 630,839.48 and 266,273.31

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Solution

The fourth proportional to 457,128.75, 630,839.48 and 266,273.31 is: 367,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,128.75 : 630,839.48 = 266,273.31 : x
  2. Step 2: Convert to fraction form
    457,128.75/630,839.48 = 266,273.31/x
  3. Step 3: Cross multiply
    457,128.75x = 630,839.48 × 266,273.31
  4. Step 4: Simplify right side
    457,128.75x = 167,975,716,418.28
  5. Step 5: Solve for x
    x = 167,975,716,418.28/457,128.75
  6. Step 6: Final answer
    x = 367,458.22

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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.