Home / 830,491.20-1,243,663.20-548,481.60

Finding the Fourth Proportional to 830,491.20, 1,243,663.20 and 548,481.60

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Solution

The fourth proportional to 830,491.20, 1,243,663.20 and 548,481.60 is: 821,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,491.20 : 1,243,663.20 = 548,481.60 : x
  2. Step 2: Convert to fraction form
    830,491.20/1,243,663.20 = 548,481.60/x
  3. Step 3: Cross multiply
    830,491.20x = 1,243,663.20 × 548,481.60
  4. Step 4: Simplify right side
    830,491.20x = 682,126,381,797.12
  5. Step 5: Solve for x
    x = 682,126,381,797.12/830,491.20
  6. Step 6: Final answer
    x = 821,352.93

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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.