Home / 1,078,937.31-1,618,405.52-320,775.49

Finding the Fourth Proportional to 1,078,937.31, 1,618,405.52 and 320,775.49

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Solution

The fourth proportional to 1,078,937.31, 1,618,405.52 and 320,775.49 is: 481,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,937.31 : 1,618,405.52 = 320,775.49 : x
  2. Step 2: Convert to fraction form
    1,078,937.31/1,618,405.52 = 320,775.49/x
  3. Step 3: Cross multiply
    1,078,937.31x = 1,618,405.52 × 320,775.49
  4. Step 4: Simplify right side
    1,078,937.31x = 519,144,824,115.83
  5. Step 5: Solve for x
    x = 519,144,824,115.83/1,078,937.31
  6. Step 6: Final answer
    x = 481,163.10

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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.