Home / 452,530.72-678,943.53-215,842.60

Finding the Fourth Proportional to 452,530.72, 678,943.53 and 215,842.60

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Solution

The fourth proportional to 452,530.72, 678,943.53 and 215,842.60 is: 323,834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,530.72 : 678,943.53 = 215,842.60 : x
  2. Step 2: Convert to fraction form
    452,530.72/678,943.53 = 215,842.60/x
  3. Step 3: Cross multiply
    452,530.72x = 678,943.53 × 215,842.60
  4. Step 4: Simplify right side
    452,530.72x = 146,544,936,768.38
  5. Step 5: Solve for x
    x = 146,544,936,768.38/452,530.72
  6. Step 6: Final answer
    x = 323,834.23

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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.