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Finding the Fourth Proportional to 479,886.26, 662,243.04 and 278,695.22

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Solution

The fourth proportional to 479,886.26, 662,243.04 and 278,695.22 is: 384,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,886.26 : 662,243.04 = 278,695.22 : x
  2. Step 2: Convert to fraction form
    479,886.26/662,243.04 = 278,695.22/x
  3. Step 3: Cross multiply
    479,886.26x = 662,243.04 × 278,695.22
  4. Step 4: Simplify right side
    479,886.26x = 184,563,969,726.27
  5. Step 5: Solve for x
    x = 184,563,969,726.27/479,886.26
  6. Step 6: Final answer
    x = 384,599.40

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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.