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Finding the Fourth Proportional to 486,519.41, 671,392.77 and 265,756.88

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Solution

The fourth proportional to 486,519.41, 671,392.77 and 265,756.88 is: 366,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,519.41 : 671,392.77 = 265,756.88 : x
  2. Step 2: Convert to fraction form
    486,519.41/671,392.77 = 265,756.88/x
  3. Step 3: Cross multiply
    486,519.41x = 671,392.77 × 265,756.88
  4. Step 4: Simplify right side
    486,519.41x = 178,427,248,474.15
  5. Step 5: Solve for x
    x = 178,427,248,474.15/486,519.41
  6. Step 6: Final answer
    x = 366,742.30

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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.