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Finding the Fourth Proportional to 526,797.32, 726,980.27 and 285,079.86

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Solution

The fourth proportional to 526,797.32, 726,980.27 and 285,079.86 is: 393,410.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,797.32 : 726,980.27 = 285,079.86 : x
  2. Step 2: Convert to fraction form
    526,797.32/726,980.27 = 285,079.86/x
  3. Step 3: Cross multiply
    526,797.32x = 726,980.27 × 285,079.86
  4. Step 4: Simplify right side
    526,797.32x = 207,247,433,594.36
  5. Step 5: Solve for x
    x = 207,247,433,594.36/526,797.32
  6. Step 6: Final answer
    x = 393,410.19

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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.