Home / 664,836.50-997,812.66-345,184.58

Finding the Fourth Proportional to 664,836.50, 997,812.66 and 345,184.58

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Solution

The fourth proportional to 664,836.50, 997,812.66 and 345,184.58 is: 518,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,836.50 : 997,812.66 = 345,184.58 : x
  2. Step 2: Convert to fraction form
    664,836.50/997,812.66 = 345,184.58/x
  3. Step 3: Cross multiply
    664,836.50x = 997,812.66 × 345,184.58
  4. Step 4: Simplify right side
    664,836.50x = 344,429,543,960.78
  5. Step 5: Solve for x
    x = 344,429,543,960.78/664,836.50
  6. Step 6: Final answer
    x = 518,066.54

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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.