Home / 1,231,395.60-1,847,266.20-389,859.60

Finding the Fourth Proportional to 1,231,395.60, 1,847,266.20 and 389,859.60

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Solution

The fourth proportional to 1,231,395.60, 1,847,266.20 and 389,859.60 is: 584,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,395.60 : 1,847,266.20 = 389,859.60 : x
  2. Step 2: Convert to fraction form
    1,231,395.60/1,847,266.20 = 389,859.60/x
  3. Step 3: Cross multiply
    1,231,395.60x = 1,847,266.20 × 389,859.60
  4. Step 4: Simplify right side
    1,231,395.60x = 720,174,461,825.52
  5. Step 5: Solve for x
    x = 720,174,461,825.52/1,231,395.60
  6. Step 6: Final answer
    x = 584,844.11

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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.