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Finding the Fourth Proportional to 491,059.40, 736,200.30 and 269,443.40

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Solution

The fourth proportional to 491,059.40, 736,200.30 and 269,443.40 is: 403,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,059.40 : 736,200.30 = 269,443.40 : x
  2. Step 2: Convert to fraction form
    491,059.40/736,200.30 = 269,443.40/x
  3. Step 3: Cross multiply
    491,059.40x = 736,200.30 × 269,443.40
  4. Step 4: Simplify right side
    491,059.40x = 198,364,311,913.02
  5. Step 5: Solve for x
    x = 198,364,311,913.02/491,059.40
  6. Step 6: Final answer
    x = 403,951.77

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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.