Home / 1,208,714.34-1,667,990.97-664,850.10

Finding the Fourth Proportional to 1,208,714.34, 1,667,990.97 and 664,850.10

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Solution

The fourth proportional to 1,208,714.34, 1,667,990.97 and 664,850.10 is: 917,473.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,714.34 : 1,667,990.97 = 664,850.10 : x
  2. Step 2: Convert to fraction form
    1,208,714.34/1,667,990.97 = 664,850.10/x
  3. Step 3: Cross multiply
    1,208,714.34x = 1,667,990.97 × 664,850.10
  4. Step 4: Simplify right side
    1,208,714.34x = 1,108,963,963,203.60
  5. Step 5: Solve for x
    x = 1,108,963,963,203.60/1,208,714.34
  6. Step 6: Final answer
    x = 917,473.99

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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.