Home / 913,930.29-1,261,222.79-511,522.29

Finding the Fourth Proportional to 913,930.29, 1,261,222.79 and 511,522.29

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Solution

The fourth proportional to 913,930.29, 1,261,222.79 and 511,522.29 is: 705,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,930.29 : 1,261,222.79 = 511,522.29 : x
  2. Step 2: Convert to fraction form
    913,930.29/1,261,222.79 = 511,522.29/x
  3. Step 3: Cross multiply
    913,930.29x = 1,261,222.79 × 511,522.29
  4. Step 4: Simplify right side
    913,930.29x = 645,143,567,183.38
  5. Step 5: Solve for x
    x = 645,143,567,183.38/913,930.29
  6. Step 6: Final answer
    x = 705,900.19

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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.