Home / 668,943.30-1,002,054.15-415,445.70

Finding the Fourth Proportional to 668,943.30, 1,002,054.15 and 415,445.70

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Solution

The fourth proportional to 668,943.30, 1,002,054.15 and 415,445.70 is: 622,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,943.30 : 1,002,054.15 = 415,445.70 : x
  2. Step 2: Convert to fraction form
    668,943.30/1,002,054.15 = 415,445.70/x
  3. Step 3: Cross multiply
    668,943.30x = 1,002,054.15 × 415,445.70
  4. Step 4: Simplify right side
    668,943.30x = 416,299,087,784.66
  5. Step 5: Solve for x
    x = 416,299,087,784.66/668,943.30
  6. Step 6: Final answer
    x = 622,323.43

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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.