Home / 1,397,043.78-1,928,259.94-853,637.15

Finding the Fourth Proportional to 1,397,043.78, 1,928,259.94 and 853,637.15

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Solution

The fourth proportional to 1,397,043.78, 1,928,259.94 and 853,637.15 is: 1,178,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,043.78 : 1,928,259.94 = 853,637.15 : x
  2. Step 2: Convert to fraction form
    1,397,043.78/1,928,259.94 = 853,637.15/x
  3. Step 3: Cross multiply
    1,397,043.78x = 1,928,259.94 × 853,637.15
  4. Step 4: Simplify right side
    1,397,043.78x = 1,646,034,319,640.77
  5. Step 5: Solve for x
    x = 1,646,034,319,640.77/1,397,043.78
  6. Step 6: Final answer
    x = 1,178,226.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.