Home / 1,340,752.40-2,011,128.60-394,218.80

Finding the Fourth Proportional to 1,340,752.40, 2,011,128.60 and 394,218.80

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Solution

The fourth proportional to 1,340,752.40, 2,011,128.60 and 394,218.80 is: 591,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,752.40 : 2,011,128.60 = 394,218.80 : x
  2. Step 2: Convert to fraction form
    1,340,752.40/2,011,128.60 = 394,218.80/x
  3. Step 3: Cross multiply
    1,340,752.40x = 2,011,128.60 × 394,218.80
  4. Step 4: Simplify right side
    1,340,752.40x = 792,824,703,337.68
  5. Step 5: Solve for x
    x = 792,824,703,337.68/1,340,752.40
  6. Step 6: Final answer
    x = 591,328.20

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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.