Home / 538,135.22-742,631.73-296,418.86

Finding the Fourth Proportional to 538,135.22, 742,631.73 and 296,418.86

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Solution

The fourth proportional to 538,135.22, 742,631.73 and 296,418.86 is: 409,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,135.22 : 742,631.73 = 296,418.86 : x
  2. Step 2: Convert to fraction form
    538,135.22/742,631.73 = 296,418.86/x
  3. Step 3: Cross multiply
    538,135.22x = 742,631.73 × 296,418.86
  4. Step 4: Simplify right side
    538,135.22x = 220,130,050,806.43
  5. Step 5: Solve for x
    x = 220,130,050,806.43/538,135.22
  6. Step 6: Final answer
    x = 409,060.85

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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.