Home / 1,398,286.60-2,098,985.10-866,408.20

Finding the Fourth Proportional to 1,398,286.60, 2,098,985.10 and 866,408.20

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Solution

The fourth proportional to 1,398,286.60, 2,098,985.10 and 866,408.20 is: 1,300,575.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,286.60 : 2,098,985.10 = 866,408.20 : x
  2. Step 2: Convert to fraction form
    1,398,286.60/2,098,985.10 = 866,408.20/x
  3. Step 3: Cross multiply
    1,398,286.60x = 2,098,985.10 × 866,408.20
  4. Step 4: Simplify right side
    1,398,286.60x = 1,818,577,902,317.82
  5. Step 5: Solve for x
    x = 1,818,577,902,317.82/1,398,286.60
  6. Step 6: Final answer
    x = 1,300,575.94

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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.