Home / 684,862.27-945,137.79-378,933.67

Finding the Fourth Proportional to 684,862.27, 945,137.79 and 378,933.67

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Solution

The fourth proportional to 684,862.27, 945,137.79 and 378,933.67 is: 522,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,862.27 : 945,137.79 = 378,933.67 : x
  2. Step 2: Convert to fraction form
    684,862.27/945,137.79 = 378,933.67/x
  3. Step 3: Cross multiply
    684,862.27x = 945,137.79 × 378,933.67
  4. Step 4: Simplify right side
    684,862.27x = 358,144,531,420.39
  5. Step 5: Solve for x
    x = 358,144,531,420.39/684,862.27
  6. Step 6: Final answer
    x = 522,943.88

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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.