Home / 1,285,176.86-1,927,785.76-486,243.88

Finding the Fourth Proportional to 1,285,176.86, 1,927,785.76 and 486,243.88

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Solution

The fourth proportional to 1,285,176.86, 1,927,785.76 and 486,243.88 is: 729,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,176.86 : 1,927,785.76 = 486,243.88 : x
  2. Step 2: Convert to fraction form
    1,285,176.86/1,927,785.76 = 486,243.88/x
  3. Step 3: Cross multiply
    1,285,176.86x = 1,927,785.76 × 486,243.88
  4. Step 4: Simplify right side
    1,285,176.86x = 937,374,027,751.15
  5. Step 5: Solve for x
    x = 937,374,027,751.15/1,285,176.86
  6. Step 6: Final answer
    x = 729,373.56

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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.