Home / 1,121,703.52-1,679,872.96-646,949.56

Finding the Fourth Proportional to 1,121,703.52, 1,679,872.96 and 646,949.56

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Solution

The fourth proportional to 1,121,703.52, 1,679,872.96 and 646,949.56 is: 968,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,703.52 : 1,679,872.96 = 646,949.56 : x
  2. Step 2: Convert to fraction form
    1,121,703.52/1,679,872.96 = 646,949.56/x
  3. Step 3: Cross multiply
    1,121,703.52x = 1,679,872.96 × 646,949.56
  4. Step 4: Simplify right side
    1,121,703.52x = 1,086,793,072,327.90
  5. Step 5: Solve for x
    x = 1,086,793,072,327.90/1,121,703.52
  6. Step 6: Final answer
    x = 968,877.30

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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.