Home / 1,989,374.33-2,984,643.68-641,509.62

Finding the Fourth Proportional to 1,989,374.33, 2,984,643.68 and 641,509.62

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Solution

The fourth proportional to 1,989,374.33, 2,984,643.68 and 641,509.62 is: 962,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,374.33 : 2,984,643.68 = 641,509.62 : x
  2. Step 2: Convert to fraction form
    1,989,374.33/2,984,643.68 = 641,509.62/x
  3. Step 3: Cross multiply
    1,989,374.33x = 2,984,643.68 × 641,509.62
  4. Step 4: Simplify right side
    1,989,374.33x = 1,914,677,629,784.65
  5. Step 5: Solve for x
    x = 1,914,677,629,784.65/1,989,374.33
  6. Step 6: Final answer
    x = 962,452.17

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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.