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Finding the Fourth Proportional to 555,087.32, 766,039.04 and 340,185.86

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Solution

The fourth proportional to 555,087.32, 766,039.04 and 340,185.86 is: 469,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,087.32 : 766,039.04 = 340,185.86 : x
  2. Step 2: Convert to fraction form
    555,087.32/766,039.04 = 340,185.86/x
  3. Step 3: Cross multiply
    555,087.32x = 766,039.04 × 340,185.86
  4. Step 4: Simplify right side
    555,087.32x = 260,595,649,615.97
  5. Step 5: Solve for x
    x = 260,595,649,615.97/555,087.32
  6. Step 6: Final answer
    x = 469,467.85

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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.