Home / 684,836.46-945,061.84-378,912.82

Finding the Fourth Proportional to 684,836.46, 945,061.84 and 378,912.82

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Solution

The fourth proportional to 684,836.46, 945,061.84 and 378,912.82 is: 522,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,836.46 : 945,061.84 = 378,912.82 : x
  2. Step 2: Convert to fraction form
    684,836.46/945,061.84 = 378,912.82/x
  3. Step 3: Cross multiply
    684,836.46x = 945,061.84 × 378,912.82
  4. Step 4: Simplify right side
    684,836.46x = 358,096,046,868.79
  5. Step 5: Solve for x
    x = 358,096,046,868.79/684,836.46
  6. Step 6: Final answer
    x = 522,892.79

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1.5x scale

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.