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Finding the Fourth Proportional to 768,367.46, 1,152,686.46 and 262,809.74

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Solution

The fourth proportional to 768,367.46, 1,152,686.46 and 262,809.74 is: 394,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,367.46 : 1,152,686.46 = 262,809.74 : x
  2. Step 2: Convert to fraction form
    768,367.46/1,152,686.46 = 262,809.74/x
  3. Step 3: Cross multiply
    768,367.46x = 1,152,686.46 × 262,809.74
  4. Step 4: Simplify right side
    768,367.46x = 302,937,228,854.12
  5. Step 5: Solve for x
    x = 302,937,228,854.12/768,367.46
  6. Step 6: Final answer
    x = 394,260.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.