Home / 1,329,428.84-1,993,724.96-430,662.04

Finding the Fourth Proportional to 1,329,428.84, 1,993,724.96 and 430,662.04

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Solution

The fourth proportional to 1,329,428.84, 1,993,724.96 and 430,662.04 is: 645,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,428.84 : 1,993,724.96 = 430,662.04 : x
  2. Step 2: Convert to fraction form
    1,329,428.84/1,993,724.96 = 430,662.04/x
  3. Step 3: Cross multiply
    1,329,428.84x = 1,993,724.96 × 430,662.04
  4. Step 4: Simplify right side
    1,329,428.84x = 858,621,651,334.90
  5. Step 5: Solve for x
    x = 858,621,651,334.90/1,329,428.84
  6. Step 6: Final answer
    x = 645,857.55

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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.