Home / 1,542,308.64-2,128,363.92-853,914.48

Finding the Fourth Proportional to 1,542,308.64, 2,128,363.92 and 853,914.48

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Solution

The fourth proportional to 1,542,308.64, 2,128,363.92 and 853,914.48 is: 1,178,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,308.64 : 2,128,363.92 = 853,914.48 : x
  2. Step 2: Convert to fraction form
    1,542,308.64/2,128,363.92 = 853,914.48/x
  3. Step 3: Cross multiply
    1,542,308.64x = 2,128,363.92 × 853,914.48
  4. Step 4: Simplify right side
    1,542,308.64x = 1,817,440,769,997.56
  5. Step 5: Solve for x
    x = 1,817,440,769,997.56/1,542,308.64
  6. Step 6: Final answer
    x = 1,178,389.80

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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.