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Finding the Fourth Proportional to 491,355.42, 735,963.38 and 301,240.86

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Solution

The fourth proportional to 491,355.42, 735,963.38 and 301,240.86 is: 451,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,355.42 : 735,963.38 = 301,240.86 : x
  2. Step 2: Convert to fraction form
    491,355.42/735,963.38 = 301,240.86/x
  3. Step 3: Cross multiply
    491,355.42x = 735,963.38 × 301,240.86
  4. Step 4: Simplify right side
    491,355.42x = 221,702,241,519.71
  5. Step 5: Solve for x
    x = 221,702,241,519.71/491,355.42
  6. Step 6: Final answer
    x = 451,205.45

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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.