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Finding the Fourth Proportional to 388,966.40, 582,758.40 and 333,670.40

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Solution

The fourth proportional to 388,966.40, 582,758.40 and 333,670.40 is: 499,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,966.40 : 582,758.40 = 333,670.40 : x
  2. Step 2: Convert to fraction form
    388,966.40/582,758.40 = 333,670.40/x
  3. Step 3: Cross multiply
    388,966.40x = 582,758.40 × 333,670.40
  4. Step 4: Simplify right side
    388,966.40x = 194,449,228,431.36
  5. Step 5: Solve for x
    x = 194,449,228,431.36/388,966.40
  6. Step 6: Final answer
    x = 499,912.66

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1.5x scale

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.