Home / 913,900.52-1,261,199.46-511,491.56

Finding the Fourth Proportional to 913,900.52, 1,261,199.46 and 511,491.56

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Solution

The fourth proportional to 913,900.52, 1,261,199.46 and 511,491.56 is: 705,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,900.52 : 1,261,199.46 = 511,491.56 : x
  2. Step 2: Convert to fraction form
    913,900.52/1,261,199.46 = 511,491.56/x
  3. Step 3: Cross multiply
    913,900.52x = 1,261,199.46 × 511,491.56
  4. Step 4: Simplify right side
    913,900.52x = 645,092,879,266.56
  5. Step 5: Solve for x
    x = 645,092,879,266.56/913,900.52
  6. Step 6: Final answer
    x = 705,867.72

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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.