Home / 1,379,921.33-1,904,064.27-768,058.40

Finding the Fourth Proportional to 1,379,921.33, 1,904,064.27 and 768,058.40

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Solution

The fourth proportional to 1,379,921.33, 1,904,064.27 and 768,058.40 is: 1,059,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,921.33 : 1,904,064.27 = 768,058.40 : x
  2. Step 2: Convert to fraction form
    1,379,921.33/1,904,064.27 = 768,058.40/x
  3. Step 3: Cross multiply
    1,379,921.33x = 1,904,064.27 × 768,058.40
  4. Step 4: Simplify right side
    1,379,921.33x = 1,462,432,558,593.31
  5. Step 5: Solve for x
    x = 1,462,432,558,593.31/1,379,921.33
  6. Step 6: Final answer
    x = 1,059,794.15

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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.