Home / 1,425,299.25-2,138,084.64-400,626.88

Finding the Fourth Proportional to 1,425,299.25, 2,138,084.64 and 400,626.88

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Solution

The fourth proportional to 1,425,299.25, 2,138,084.64 and 400,626.88 is: 600,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,299.25 : 2,138,084.64 = 400,626.88 : x
  2. Step 2: Convert to fraction form
    1,425,299.25/2,138,084.64 = 400,626.88/x
  3. Step 3: Cross multiply
    1,425,299.25x = 2,138,084.64 × 400,626.88
  4. Step 4: Simplify right side
    1,425,299.25x = 856,574,173,153.91
  5. Step 5: Solve for x
    x = 856,574,173,153.91/1,425,299.25
  6. Step 6: Final answer
    x = 600,978.48

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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.