Home / 1,207,401.20-1,811,101.80-320,937.20

Finding the Fourth Proportional to 1,207,401.20, 1,811,101.80 and 320,937.20

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Solution

The fourth proportional to 1,207,401.20, 1,811,101.80 and 320,937.20 is: 481,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,401.20 : 1,811,101.80 = 320,937.20 : x
  2. Step 2: Convert to fraction form
    1,207,401.20/1,811,101.80 = 320,937.20/x
  3. Step 3: Cross multiply
    1,207,401.20x = 1,811,101.80 × 320,937.20
  4. Step 4: Simplify right side
    1,207,401.20x = 581,249,940,606.96
  5. Step 5: Solve for x
    x = 581,249,940,606.96/1,207,401.20
  6. Step 6: Final answer
    x = 481,405.80

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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.