Home / 685,669.12-946,151.30-379,737.50

Finding the Fourth Proportional to 685,669.12, 946,151.30 and 379,737.50

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Solution

The fourth proportional to 685,669.12, 946,151.30 and 379,737.50 is: 523,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,669.12 : 946,151.30 = 379,737.50 : x
  2. Step 2: Convert to fraction form
    685,669.12/946,151.30 = 379,737.50/x
  3. Step 3: Cross multiply
    685,669.12x = 946,151.30 × 379,737.50
  4. Step 4: Simplify right side
    685,669.12x = 359,289,129,283.75
  5. Step 5: Solve for x
    x = 359,289,129,283.75/685,669.12
  6. Step 6: Final answer
    x = 523,997.83

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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.