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Finding the Fourth Proportional to 998,709.80, 1,498,441.80 and 599,628.78

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Solution

The fourth proportional to 998,709.80, 1,498,441.80 and 599,628.78 is: 899,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,709.80 : 1,498,441.80 = 599,628.78 : x
  2. Step 2: Convert to fraction form
    998,709.80/1,498,441.80 = 599,628.78/x
  3. Step 3: Cross multiply
    998,709.80x = 1,498,441.80 × 599,628.78
  4. Step 4: Simplify right side
    998,709.80x = 898,508,828,435.00
  5. Step 5: Solve for x
    x = 898,508,828,435.00/998,709.80
  6. Step 6: Final answer
    x = 899,669.58

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1.5x scale

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.