Home / 685,861.02-946,475.82-379,936.46

Finding the Fourth Proportional to 685,861.02, 946,475.82 and 379,936.46

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Solution

The fourth proportional to 685,861.02, 946,475.82 and 379,936.46 is: 524,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,861.02 : 946,475.82 = 379,936.46 : x
  2. Step 2: Convert to fraction form
    685,861.02/946,475.82 = 379,936.46/x
  3. Step 3: Cross multiply
    685,861.02x = 946,475.82 × 379,936.46
  4. Step 4: Simplify right side
    685,861.02x = 359,600,674,892.59
  5. Step 5: Solve for x
    x = 359,600,674,892.59/685,861.02
  6. Step 6: Final answer
    x = 524,305.46

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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.