Home / 3,639,605.40-5,459,408.10-1,243,090.80

Finding the Fourth Proportional to 3,639,605.40, 5,459,408.10 and 1,243,090.80

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Solution

The fourth proportional to 3,639,605.40, 5,459,408.10 and 1,243,090.80 is: 1,864,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639,605.40 : 5,459,408.10 = 1,243,090.80 : x
  2. Step 2: Convert to fraction form
    3,639,605.40/5,459,408.10 = 1,243,090.80/x
  3. Step 3: Cross multiply
    3,639,605.40x = 5,459,408.10 × 1,243,090.80
  4. Step 4: Simplify right side
    3,639,605.40x = 6,786,539,982,555.48
  5. Step 5: Solve for x
    x = 6,786,539,982,555.48/3,639,605.40
  6. Step 6: Final answer
    x = 1,864,636.20

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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.