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Finding the Fourth Proportional to 495,987.12, 744,236.71 and 211,601.34

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Solution

The fourth proportional to 495,987.12, 744,236.71 and 211,601.34 is: 317,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,987.12 : 744,236.71 = 211,601.34 : x
  2. Step 2: Convert to fraction form
    495,987.12/744,236.71 = 211,601.34/x
  3. Step 3: Cross multiply
    495,987.12x = 744,236.71 × 211,601.34
  4. Step 4: Simplify right side
    495,987.12x = 157,481,484,584.19
  5. Step 5: Solve for x
    x = 157,481,484,584.19/495,987.12
  6. Step 6: Final answer
    x = 317,511.24

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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.