Home / 739,825.81-1,020,850.15-449,286.28

Finding the Fourth Proportional to 739,825.81, 1,020,850.15 and 449,286.28

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Solution

The fourth proportional to 739,825.81, 1,020,850.15 and 449,286.28 is: 619,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,825.81 : 1,020,850.15 = 449,286.28 : x
  2. Step 2: Convert to fraction form
    739,825.81/1,020,850.15 = 449,286.28/x
  3. Step 3: Cross multiply
    739,825.81x = 1,020,850.15 × 449,286.28
  4. Step 4: Simplify right side
    739,825.81x = 458,653,966,330.94
  5. Step 5: Solve for x
    x = 458,653,966,330.94/739,825.81
  6. Step 6: Final answer
    x = 619,948.59

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1.5x scale

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.