Home / 485,409.92-669,868.79-270,563.60

Finding the Fourth Proportional to 485,409.92, 669,868.79 and 270,563.60

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Solution

The fourth proportional to 485,409.92, 669,868.79 and 270,563.60 is: 373,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,409.92 : 669,868.79 = 270,563.60 : x
  2. Step 2: Convert to fraction form
    485,409.92/669,868.79 = 270,563.60/x
  3. Step 3: Cross multiply
    485,409.92x = 669,868.79 × 270,563.60
  4. Step 4: Simplify right side
    485,409.92x = 181,242,111,350.04
  5. Step 5: Solve for x
    x = 181,242,111,350.04/485,409.92
  6. Step 6: Final answer
    x = 373,379.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.