Home / 668,608.19-1,002,944.69-219,289.31

Finding the Fourth Proportional to 668,608.19, 1,002,944.69 and 219,289.31

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Solution

The fourth proportional to 668,608.19, 1,002,944.69 and 219,289.31 is: 328,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,608.19 : 1,002,944.69 = 219,289.31 : x
  2. Step 2: Convert to fraction form
    668,608.19/1,002,944.69 = 219,289.31/x
  3. Step 3: Cross multiply
    668,608.19x = 1,002,944.69 × 219,289.31
  4. Step 4: Simplify right side
    668,608.19x = 219,935,049,038.26
  5. Step 5: Solve for x
    x = 219,935,049,038.26/668,608.19
  6. Step 6: Final answer
    x = 328,944.59

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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.