Home / 913,899.52-1,261,198.08-511,490.56

Finding the Fourth Proportional to 913,899.52, 1,261,198.08 and 511,490.56

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Solution

The fourth proportional to 913,899.52, 1,261,198.08 and 511,490.56 is: 705,866.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,899.52 : 1,261,198.08 = 511,490.56 : x
  2. Step 2: Convert to fraction form
    913,899.52/1,261,198.08 = 511,490.56/x
  3. Step 3: Cross multiply
    913,899.52x = 1,261,198.08 × 511,490.56
  4. Step 4: Simplify right side
    913,899.52x = 645,090,912,210.13
  5. Step 5: Solve for x
    x = 645,090,912,210.13/913,899.52
  6. Step 6: Final answer
    x = 705,866.34

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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.