Home / 1,288,859.60-1,933,980.60-540,981.20

Finding the Fourth Proportional to 1,288,859.60, 1,933,980.60 and 540,981.20

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Solution

The fourth proportional to 1,288,859.60, 1,933,980.60 and 540,981.20 is: 811,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,859.60 : 1,933,980.60 = 540,981.20 : x
  2. Step 2: Convert to fraction form
    1,288,859.60/1,933,980.60 = 540,981.20/x
  3. Step 3: Cross multiply
    1,288,859.60x = 1,933,980.60 × 540,981.20
  4. Step 4: Simplify right side
    1,288,859.60x = 1,046,247,145,764.72
  5. Step 5: Solve for x
    x = 1,046,247,145,764.72/1,288,859.60
  6. Step 6: Final answer
    x = 811,761.92

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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.