Home / 1,121,699.52-1,679,866.96-646,945.56

Finding the Fourth Proportional to 1,121,699.52, 1,679,866.96 and 646,945.56

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Solution

The fourth proportional to 1,121,699.52, 1,679,866.96 and 646,945.56 is: 968,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,699.52 : 1,679,866.96 = 646,945.56 : x
  2. Step 2: Convert to fraction form
    1,121,699.52/1,679,866.96 = 646,945.56/x
  3. Step 3: Cross multiply
    1,121,699.52x = 1,679,866.96 × 646,945.56
  4. Step 4: Simplify right side
    1,121,699.52x = 1,086,782,471,162.70
  5. Step 5: Solve for x
    x = 1,086,782,471,162.70/1,121,699.52
  6. Step 6: Final answer
    x = 968,871.30

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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.