Home / 1,029,965.40-1,541,837.70-905,549.40

Finding the Fourth Proportional to 1,029,965.40, 1,541,837.70 and 905,549.40

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Solution

The fourth proportional to 1,029,965.40, 1,541,837.70 and 905,549.40 is: 1,355,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,965.40 : 1,541,837.70 = 905,549.40 : x
  2. Step 2: Convert to fraction form
    1,029,965.40/1,541,837.70 = 905,549.40/x
  3. Step 3: Cross multiply
    1,029,965.40x = 1,541,837.70 × 905,549.40
  4. Step 4: Simplify right side
    1,029,965.40x = 1,396,210,204,132.38
  5. Step 5: Solve for x
    x = 1,396,210,204,132.38/1,029,965.40
  6. Step 6: Final answer
    x = 1,355,589.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.