Home / 1,005,112.64-1,507,891.30-331,166.72

Finding the Fourth Proportional to 1,005,112.64, 1,507,891.30 and 331,166.72

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Solution

The fourth proportional to 1,005,112.64, 1,507,891.30 and 331,166.72 is: 496,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,112.64 : 1,507,891.30 = 331,166.72 : x
  2. Step 2: Convert to fraction form
    1,005,112.64/1,507,891.30 = 331,166.72/x
  3. Step 3: Cross multiply
    1,005,112.64x = 1,507,891.30 × 331,166.72
  4. Step 4: Simplify right side
    1,005,112.64x = 499,363,407,570.16
  5. Step 5: Solve for x
    x = 499,363,407,570.16/1,005,112.64
  6. Step 6: Final answer
    x = 496,823.33

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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.