Home / 762,022.80-1,143,719.46-407,340

Finding the Fourth Proportional to 762,022.80, 1,143,719.46 and 407,340

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Solution

The fourth proportional to 762,022.80, 1,143,719.46 and 407,340 is: 611,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,022.80 : 1,143,719.46 = 407,340 : x
  2. Step 2: Convert to fraction form
    762,022.80/1,143,719.46 = 407,340/x
  3. Step 3: Cross multiply
    762,022.80x = 1,143,719.46 × 407,340
  4. Step 4: Simplify right side
    762,022.80x = 465,882,684,836.40
  5. Step 5: Solve for x
    x = 465,882,684,836.40/762,022.80
  6. Step 6: Final answer
    x = 611,376.31

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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.