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Finding the Fourth Proportional to 637,506.05, 879,560.91 and 361,819.58

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Solution

The fourth proportional to 637,506.05, 879,560.91 and 361,819.58 is: 499,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,506.05 : 879,560.91 = 361,819.58 : x
  2. Step 2: Convert to fraction form
    637,506.05/879,560.91 = 361,819.58/x
  3. Step 3: Cross multiply
    637,506.05x = 879,560.91 × 361,819.58
  4. Step 4: Simplify right side
    637,506.05x = 318,242,354,642.81
  5. Step 5: Solve for x
    x = 318,242,354,642.81/637,506.05
  6. Step 6: Final answer
    x = 499,198.96

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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.