Home / 925,219-1,387,125.24-640,151.74

Finding the Fourth Proportional to 925,219, 1,387,125.24 and 640,151.74

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Solution

The fourth proportional to 925,219, 1,387,125.24 and 640,151.74 is: 959,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,219 : 1,387,125.24 = 640,151.74 : x
  2. Step 2: Convert to fraction form
    925,219/1,387,125.24 = 640,151.74/x
  3. Step 3: Cross multiply
    925,219x = 1,387,125.24 × 640,151.74
  4. Step 4: Simplify right side
    925,219x = 887,970,635,983.92
  5. Step 5: Solve for x
    x = 887,970,635,983.92/925,219
  6. Step 6: Final answer
    x = 959,741.03

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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.