Home / 982,142.64-1,355,370.84-579,734.64

Finding the Fourth Proportional to 982,142.64, 1,355,370.84 and 579,734.64

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Solution

The fourth proportional to 982,142.64, 1,355,370.84 and 579,734.64 is: 800,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,142.64 : 1,355,370.84 = 579,734.64 : x
  2. Step 2: Convert to fraction form
    982,142.64/1,355,370.84 = 579,734.64/x
  3. Step 3: Cross multiply
    982,142.64x = 1,355,370.84 × 579,734.64
  4. Step 4: Simplify right side
    982,142.64x = 785,755,425,993.90
  5. Step 5: Solve for x
    x = 785,755,425,993.90/982,142.64
  6. Step 6: Final answer
    x = 800,042.07

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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.