Home / 678,735.74-1,016,927.60-411,937.22

Finding the Fourth Proportional to 678,735.74, 1,016,927.60 and 411,937.22

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Solution

The fourth proportional to 678,735.74, 1,016,927.60 and 411,937.22 is: 617,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,735.74 : 1,016,927.60 = 411,937.22 : x
  2. Step 2: Convert to fraction form
    678,735.74/1,016,927.60 = 411,937.22/x
  3. Step 3: Cross multiply
    678,735.74x = 1,016,927.60 × 411,937.22
  4. Step 4: Simplify right side
    678,735.74x = 418,910,328,485.27
  5. Step 5: Solve for x
    x = 418,910,328,485.27/678,735.74
  6. Step 6: Final answer
    x = 617,192.09

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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.