Home / 668,825.20-1,003,237.80-314,531.20

Finding the Fourth Proportional to 668,825.20, 1,003,237.80 and 314,531.20

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Solution

The fourth proportional to 668,825.20, 1,003,237.80 and 314,531.20 is: 471,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,825.20 : 1,003,237.80 = 314,531.20 : x
  2. Step 2: Convert to fraction form
    668,825.20/1,003,237.80 = 314,531.20/x
  3. Step 3: Cross multiply
    668,825.20x = 1,003,237.80 × 314,531.20
  4. Step 4: Simplify right side
    668,825.20x = 315,549,589,119.36
  5. Step 5: Solve for x
    x = 315,549,589,119.36/668,825.20
  6. Step 6: Final answer
    x = 471,796.80

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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.