Home / 668,402.37-1,002,720.47-398,745.27

Finding the Fourth Proportional to 668,402.37, 1,002,720.47 and 398,745.27

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Solution

The fourth proportional to 668,402.37, 1,002,720.47 and 398,745.27 is: 598,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,402.37 : 1,002,720.47 = 398,745.27 : x
  2. Step 2: Convert to fraction form
    668,402.37/1,002,720.47 = 398,745.27/x
  3. Step 3: Cross multiply
    668,402.37x = 1,002,720.47 × 398,745.27
  4. Step 4: Simplify right side
    668,402.37x = 399,830,042,550.95
  5. Step 5: Solve for x
    x = 399,830,042,550.95/668,402.37
  6. Step 6: Final answer
    x = 598,187.65

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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.