Home / 1,425,383.86-2,138,469.45-1,268,707.18

Finding the Fourth Proportional to 1,425,383.86, 2,138,469.45 and 1,268,707.18

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Solution

The fourth proportional to 1,425,383.86, 2,138,469.45 and 1,268,707.18 is: 1,903,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,383.86 : 2,138,469.45 = 1,268,707.18 : x
  2. Step 2: Convert to fraction form
    1,425,383.86/2,138,469.45 = 1,268,707.18/x
  3. Step 3: Cross multiply
    1,425,383.86x = 2,138,469.45 × 1,268,707.18
  4. Step 4: Simplify right side
    1,425,383.86x = 2,713,091,528,389.77
  5. Step 5: Solve for x
    x = 2,713,091,528,389.77/1,425,383.86
  6. Step 6: Final answer
    x = 1,903,411.15

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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.