Home / 1,192,137.61-1,645,157.64-648,279.31

Finding the Fourth Proportional to 1,192,137.61, 1,645,157.64 and 648,279.31

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Solution

The fourth proportional to 1,192,137.61, 1,645,157.64 and 648,279.31 is: 894,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,137.61 : 1,645,157.64 = 648,279.31 : x
  2. Step 2: Convert to fraction form
    1,192,137.61/1,645,157.64 = 648,279.31/x
  3. Step 3: Cross multiply
    1,192,137.61x = 1,645,157.64 × 648,279.31
  4. Step 4: Simplify right side
    1,192,137.61x = 1,066,521,659,700.43
  5. Step 5: Solve for x
    x = 1,066,521,659,700.43/1,192,137.61
  6. Step 6: Final answer
    x = 894,629.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.