Home / 1,542,218.45-2,128,327.95-853,890.27

Finding the Fourth Proportional to 1,542,218.45, 2,128,327.95 and 853,890.27

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Solution

The fourth proportional to 1,542,218.45, 2,128,327.95 and 853,890.27 is: 1,178,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,218.45 : 2,128,327.95 = 853,890.27 : x
  2. Step 2: Convert to fraction form
    1,542,218.45/2,128,327.95 = 853,890.27/x
  3. Step 3: Cross multiply
    1,542,218.45x = 2,128,327.95 × 853,890.27
  4. Step 4: Simplify right side
    1,542,218.45x = 1,817,358,527,874.05
  5. Step 5: Solve for x
    x = 1,817,358,527,874.05/1,542,218.45
  6. Step 6: Final answer
    x = 1,178,405.39

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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.