Home / 1,776,789.23-2,665,160.30-428,944.56

Finding the Fourth Proportional to 1,776,789.23, 2,665,160.30 and 428,944.56

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Solution

The fourth proportional to 1,776,789.23, 2,665,160.30 and 428,944.56 is: 643,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,789.23 : 2,665,160.30 = 428,944.56 : x
  2. Step 2: Convert to fraction form
    1,776,789.23/2,665,160.30 = 428,944.56/x
  3. Step 3: Cross multiply
    1,776,789.23x = 2,665,160.30 × 428,944.56
  4. Step 4: Simplify right side
    1,776,789.23x = 1,143,206,010,068.25
  5. Step 5: Solve for x
    x = 1,143,206,010,068.25/1,776,789.23
  6. Step 6: Final answer
    x = 643,411.16

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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.