Home / 998,647.36-1,499,037.24-430,308.96

Finding the Fourth Proportional to 998,647.36, 1,499,037.24 and 430,308.96

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Solution

The fourth proportional to 998,647.36, 1,499,037.24 and 430,308.96 is: 645,922.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,647.36 : 1,499,037.24 = 430,308.96 : x
  2. Step 2: Convert to fraction form
    998,647.36/1,499,037.24 = 430,308.96/x
  3. Step 3: Cross multiply
    998,647.36x = 1,499,037.24 × 430,308.96
  4. Step 4: Simplify right side
    998,647.36x = 645,049,155,745.67
  5. Step 5: Solve for x
    x = 645,049,155,745.67/998,647.36
  6. Step 6: Final answer
    x = 645,922.86

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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.