Home / 1,591,392.35-2,387,065.11-393,314.78

Finding the Fourth Proportional to 1,591,392.35, 2,387,065.11 and 393,314.78

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Solution

The fourth proportional to 1,591,392.35, 2,387,065.11 and 393,314.78 is: 589,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591,392.35 : 2,387,065.11 = 393,314.78 : x
  2. Step 2: Convert to fraction form
    1,591,392.35/2,387,065.11 = 393,314.78/x
  3. Step 3: Cross multiply
    1,591,392.35x = 2,387,065.11 × 393,314.78
  4. Step 4: Simplify right side
    1,591,392.35x = 938,867,976,650.00
  5. Step 5: Solve for x
    x = 938,867,976,650.00/1,591,392.35
  6. Step 6: Final answer
    x = 589,966.38

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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.