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Finding the Fourth Proportional to 647,243.42, 893,226.57 and 360,765.86

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Solution

The fourth proportional to 647,243.42, 893,226.57 and 360,765.86 is: 497,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,243.42 : 893,226.57 = 360,765.86 : x
  2. Step 2: Convert to fraction form
    647,243.42/893,226.57 = 360,765.86/x
  3. Step 3: Cross multiply
    647,243.42x = 893,226.57 × 360,765.86
  4. Step 4: Simplify right side
    647,243.42x = 322,245,651,700.90
  5. Step 5: Solve for x
    x = 322,245,651,700.90/647,243.42
  6. Step 6: Final answer
    x = 497,873.97

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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.