Home / 457,029.56-630,707.28-263,330.36

Finding the Fourth Proportional to 457,029.56, 630,707.28 and 263,330.36

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Solution

The fourth proportional to 457,029.56, 630,707.28 and 263,330.36 is: 363,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,029.56 : 630,707.28 = 263,330.36 : x
  2. Step 2: Convert to fraction form
    457,029.56/630,707.28 = 263,330.36/x
  3. Step 3: Cross multiply
    457,029.56x = 630,707.28 × 263,330.36
  4. Step 4: Simplify right side
    457,029.56x = 166,084,375,097.02
  5. Step 5: Solve for x
    x = 166,084,375,097.02/457,029.56
  6. Step 6: Final answer
    x = 363,399.63

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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.