Home / 1,131,384.58-1,561,305.31-666,508.34

Finding the Fourth Proportional to 1,131,384.58, 1,561,305.31 and 666,508.34

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Solution

The fourth proportional to 1,131,384.58, 1,561,305.31 and 666,508.34 is: 919,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,384.58 : 1,561,305.31 = 666,508.34 : x
  2. Step 2: Convert to fraction form
    1,131,384.58/1,561,305.31 = 666,508.34/x
  3. Step 3: Cross multiply
    1,131,384.58x = 1,561,305.31 × 666,508.34
  4. Step 4: Simplify right side
    1,131,384.58x = 1,040,623,007,068.74
  5. Step 5: Solve for x
    x = 1,040,623,007,068.74/1,131,384.58
  6. Step 6: Final answer
    x = 919,778.32

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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.