Home / 1,315,139.37-1,972,807.88-416,651.73

Finding the Fourth Proportional to 1,315,139.37, 1,972,807.88 and 416,651.73

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Solution

The fourth proportional to 1,315,139.37, 1,972,807.88 and 416,651.73 is: 625,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,139.37 : 1,972,807.88 = 416,651.73 : x
  2. Step 2: Convert to fraction form
    1,315,139.37/1,972,807.88 = 416,651.73/x
  3. Step 3: Cross multiply
    1,315,139.37x = 1,972,807.88 × 416,651.73
  4. Step 4: Simplify right side
    1,315,139.37x = 821,973,814,076.37
  5. Step 5: Solve for x
    x = 821,973,814,076.37/1,315,139.37
  6. Step 6: Final answer
    x = 625,008.90

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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.