Home / 2,126,321.96-3,188,547.12-778,134.20

Finding the Fourth Proportional to 2,126,321.96, 3,188,547.12 and 778,134.20

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Solution

The fourth proportional to 2,126,321.96, 3,188,547.12 and 778,134.20 is: 1,166,858.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,321.96 : 3,188,547.12 = 778,134.20 : x
  2. Step 2: Convert to fraction form
    2,126,321.96/3,188,547.12 = 778,134.20/x
  3. Step 3: Cross multiply
    2,126,321.96x = 3,188,547.12 × 778,134.20
  4. Step 4: Simplify right side
    2,126,321.96x = 2,481,117,562,383.50
  5. Step 5: Solve for x
    x = 2,481,117,562,383.50/2,126,321.96
  6. Step 6: Final answer
    x = 1,166,858.83

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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.