Home / 1,487,120.96-2,230,676.84-422,163.74

Finding the Fourth Proportional to 1,487,120.96, 2,230,676.84 and 422,163.74

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Solution

The fourth proportional to 1,487,120.96, 2,230,676.84 and 422,163.74 is: 633,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,120.96 : 2,230,676.84 = 422,163.74 : x
  2. Step 2: Convert to fraction form
    1,487,120.96/2,230,676.84 = 422,163.74/x
  3. Step 3: Cross multiply
    1,487,120.96x = 2,230,676.84 × 422,163.74
  4. Step 4: Simplify right side
    1,487,120.96x = 941,710,877,505.78
  5. Step 5: Solve for x
    x = 941,710,877,505.78/1,487,120.96
  6. Step 6: Final answer
    x = 633,244.30

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1.5x scale

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.