Home / 1,776,440.92-2,664,636.62-428,592.21

Finding the Fourth Proportional to 1,776,440.92, 2,664,636.62 and 428,592.21

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Solution

The fourth proportional to 1,776,440.92, 2,664,636.62 and 428,592.21 is: 642,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,440.92 : 2,664,636.62 = 428,592.21 : x
  2. Step 2: Convert to fraction form
    1,776,440.92/2,664,636.62 = 428,592.21/x
  3. Step 3: Cross multiply
    1,776,440.92x = 2,664,636.62 × 428,592.21
  4. Step 4: Simplify right side
    1,776,440.92x = 1,142,042,482,346.59
  5. Step 5: Solve for x
    x = 1,142,042,482,346.59/1,776,440.92
  6. Step 6: Final answer
    x = 642,882.33

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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.