Home / 913,903.52-1,261,203.60-511,494.56

Finding the Fourth Proportional to 913,903.52, 1,261,203.60 and 511,494.56

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Solution

The fourth proportional to 913,903.52, 1,261,203.60 and 511,494.56 is: 705,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,903.52 : 1,261,203.60 = 511,494.56 : x
  2. Step 2: Convert to fraction form
    913,903.52/1,261,203.60 = 511,494.56/x
  3. Step 3: Cross multiply
    913,903.52x = 1,261,203.60 × 511,494.56
  4. Step 4: Simplify right side
    913,903.52x = 645,098,780,452.42
  5. Step 5: Solve for x
    x = 645,098,780,452.42/913,903.52
  6. Step 6: Final answer
    x = 705,871.86

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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.