Home / 1,422,612.88-2,133,916.89-664,200.16

Finding the Fourth Proportional to 1,422,612.88, 2,133,916.89 and 664,200.16

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Solution

The fourth proportional to 1,422,612.88, 2,133,916.89 and 664,200.16 is: 996,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,612.88 : 2,133,916.89 = 664,200.16 : x
  2. Step 2: Convert to fraction form
    1,422,612.88/2,133,916.89 = 664,200.16/x
  3. Step 3: Cross multiply
    1,422,612.88x = 2,133,916.89 × 664,200.16
  4. Step 4: Simplify right side
    1,422,612.88x = 1,417,347,939,764.70
  5. Step 5: Solve for x
    x = 1,417,347,939,764.70/1,422,612.88
  6. Step 6: Final answer
    x = 996,299.11

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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.