Home / 457,262.94-631,330.80-285,442.50

Finding the Fourth Proportional to 457,262.94, 631,330.80 and 285,442.50

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Solution

The fourth proportional to 457,262.94, 631,330.80 and 285,442.50 is: 394,102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,262.94 : 631,330.80 = 285,442.50 : x
  2. Step 2: Convert to fraction form
    457,262.94/631,330.80 = 285,442.50/x
  3. Step 3: Cross multiply
    457,262.94x = 631,330.80 × 285,442.50
  4. Step 4: Simplify right side
    457,262.94x = 180,208,641,879
  5. Step 5: Solve for x
    x = 180,208,641,879/457,262.94
  6. Step 6: Final answer
    x = 394,102.88

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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.