Home / 668,825.70-1,003,238.55-314,531.70

Finding the Fourth Proportional to 668,825.70, 1,003,238.55 and 314,531.70

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Solution

The fourth proportional to 668,825.70, 1,003,238.55 and 314,531.70 is: 471,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,825.70 : 1,003,238.55 = 314,531.70 : x
  2. Step 2: Convert to fraction form
    668,825.70/1,003,238.55 = 314,531.70/x
  3. Step 3: Cross multiply
    668,825.70x = 1,003,238.55 × 314,531.70
  4. Step 4: Simplify right side
    668,825.70x = 315,550,326,637.04
  5. Step 5: Solve for x
    x = 315,550,326,637.04/668,825.70
  6. Step 6: Final answer
    x = 471,797.55

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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.