Home / 1,425,790.57-2,138,685.86-479,161.27

Finding the Fourth Proportional to 1,425,790.57, 2,138,685.86 and 479,161.27

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Solution

The fourth proportional to 1,425,790.57, 2,138,685.86 and 479,161.27 is: 718,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,790.57 : 2,138,685.86 = 479,161.27 : x
  2. Step 2: Convert to fraction form
    1,425,790.57/2,138,685.86 = 479,161.27/x
  3. Step 3: Cross multiply
    1,425,790.57x = 2,138,685.86 × 479,161.27
  4. Step 4: Simplify right side
    1,425,790.57x = 1,024,775,430,412.84
  5. Step 5: Solve for x
    x = 1,024,775,430,412.84/1,425,790.57
  6. Step 6: Final answer
    x = 718,741.91

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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.