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Finding the Fourth Proportional to 526,434.34, 726,512.61 and 296,907.88

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Solution

The fourth proportional to 526,434.34, 726,512.61 and 296,907.88 is: 409,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,434.34 : 726,512.61 = 296,907.88 : x
  2. Step 2: Convert to fraction form
    526,434.34/726,512.61 = 296,907.88/x
  3. Step 3: Cross multiply
    526,434.34x = 726,512.61 × 296,907.88
  4. Step 4: Simplify right side
    526,434.34x = 215,707,317,817.59
  5. Step 5: Solve for x
    x = 215,707,317,817.59/526,434.34
  6. Step 6: Final answer
    x = 409,751.61

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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.