Home / 457,239.30-630,983.40-253,289.61

Finding the Fourth Proportional to 457,239.30, 630,983.40 and 253,289.61

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Solution

The fourth proportional to 457,239.30, 630,983.40 and 253,289.61 is: 349,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,239.30 : 630,983.40 = 253,289.61 : x
  2. Step 2: Convert to fraction form
    457,239.30/630,983.40 = 253,289.61/x
  3. Step 3: Cross multiply
    457,239.30x = 630,983.40 × 253,289.61
  4. Step 4: Simplify right side
    457,239.30x = 159,821,539,302.47
  5. Step 5: Solve for x
    x = 159,821,539,302.47/457,239.30
  6. Step 6: Final answer
    x = 349,535.88

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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.