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Finding the Fourth Proportional to 526,907.52, 727,134.30 and 285,193.26

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Solution

The fourth proportional to 526,907.52, 727,134.30 and 285,193.26 is: 393,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,907.52 : 727,134.30 = 285,193.26 : x
  2. Step 2: Convert to fraction form
    526,907.52/727,134.30 = 285,193.26/x
  3. Step 3: Cross multiply
    526,907.52x = 727,134.30 × 285,193.26
  4. Step 4: Simplify right side
    526,907.52x = 207,373,801,474.82
  5. Step 5: Solve for x
    x = 207,373,801,474.82/526,907.52
  6. Step 6: Final answer
    x = 393,567.74

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Double scale
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1.5x scale

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.