Home / 739,829.30-1,020,854.96-449,289.78

Finding the Fourth Proportional to 739,829.30, 1,020,854.96 and 449,289.78

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Solution

The fourth proportional to 739,829.30, 1,020,854.96 and 449,289.78 is: 619,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,829.30 : 1,020,854.96 = 449,289.78 : x
  2. Step 2: Convert to fraction form
    739,829.30/1,020,854.96 = 449,289.78/x
  3. Step 3: Cross multiply
    739,829.30x = 1,020,854.96 × 449,289.78
  4. Step 4: Simplify right side
    739,829.30x = 458,659,700,390.31
  5. Step 5: Solve for x
    x = 458,659,700,390.31/739,829.30
  6. Step 6: Final answer
    x = 619,953.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.