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Finding the Fourth Proportional to 655,456.42, 983,171.88 and 295,428.88

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Solution

The fourth proportional to 655,456.42, 983,171.88 and 295,428.88 is: 443,137.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,456.42 : 983,171.88 = 295,428.88 : x
  2. Step 2: Convert to fraction form
    655,456.42/983,171.88 = 295,428.88/x
  3. Step 3: Cross multiply
    655,456.42x = 983,171.88 × 295,428.88
  4. Step 4: Simplify right side
    655,456.42x = 290,457,367,355.89
  5. Step 5: Solve for x
    x = 290,457,367,355.89/655,456.42
  6. Step 6: Final answer
    x = 443,137.57

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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.