Home / 900,187.82-1,349,866.16-331,426.06

Finding the Fourth Proportional to 900,187.82, 1,349,866.16 and 331,426.06

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Solution

The fourth proportional to 900,187.82, 1,349,866.16 and 331,426.06 is: 496,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,187.82 : 1,349,866.16 = 331,426.06 : x
  2. Step 2: Convert to fraction form
    900,187.82/1,349,866.16 = 331,426.06/x
  3. Step 3: Cross multiply
    900,187.82x = 1,349,866.16 × 331,426.06
  4. Step 4: Simplify right side
    900,187.82x = 447,380,822,936.13
  5. Step 5: Solve for x
    x = 447,380,822,936.13/900,187.82
  6. Step 6: Final answer
    x = 496,986.09

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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.