Home / 891,857.20-1,337,990.16-386,503.02

Finding the Fourth Proportional to 891,857.20, 1,337,990.16 and 386,503.02

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Solution

The fourth proportional to 891,857.20, 1,337,990.16 and 386,503.02 is: 579,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,857.20 : 1,337,990.16 = 386,503.02 : x
  2. Step 2: Convert to fraction form
    891,857.20/1,337,990.16 = 386,503.02/x
  3. Step 3: Cross multiply
    891,857.20x = 1,337,990.16 × 386,503.02
  4. Step 4: Simplify right side
    891,857.20x = 517,137,237,570.28
  5. Step 5: Solve for x
    x = 517,137,237,570.28/891,857.20
  6. Step 6: Final answer
    x = 579,843.09

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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.