Home / 457,239.30-631,298.33-285,418.86

Finding the Fourth Proportional to 457,239.30, 631,298.33 and 285,418.86

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Solution

The fourth proportional to 457,239.30, 631,298.33 and 285,418.86 is: 394,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,239.30 : 631,298.33 = 285,418.86 : x
  2. Step 2: Convert to fraction form
    457,239.30/631,298.33 = 285,418.86/x
  3. Step 3: Cross multiply
    457,239.30x = 631,298.33 × 285,418.86
  4. Step 4: Simplify right side
    457,239.30x = 180,184,449,668.50
  5. Step 5: Solve for x
    x = 180,184,449,668.50/457,239.30
  6. Step 6: Final answer
    x = 394,070.35

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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.