Home / 457,021.44-630,689.19-253,072.35

Finding the Fourth Proportional to 457,021.44, 630,689.19 and 253,072.35

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Solution

The fourth proportional to 457,021.44, 630,689.19 and 253,072.35 is: 349,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,021.44 : 630,689.19 = 253,072.35 : x
  2. Step 2: Convert to fraction form
    457,021.44/630,689.19 = 253,072.35/x
  3. Step 3: Cross multiply
    457,021.44x = 630,689.19 × 253,072.35
  4. Step 4: Simplify right side
    457,021.44x = 159,609,995,432.90
  5. Step 5: Solve for x
    x = 159,609,995,432.90/457,021.44
  6. Step 6: Final answer
    x = 349,239.62

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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.