Home / 485,409.41-669,868.10-270,563.10

Finding the Fourth Proportional to 485,409.41, 669,868.10 and 270,563.10

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Solution

The fourth proportional to 485,409.41, 669,868.10 and 270,563.10 is: 373,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,409.41 : 669,868.10 = 270,563.10 : x
  2. Step 2: Convert to fraction form
    485,409.41/669,868.10 = 270,563.10/x
  3. Step 3: Cross multiply
    485,409.41x = 669,868.10 × 270,563.10
  4. Step 4: Simplify right side
    485,409.41x = 181,241,589,727.11
  5. Step 5: Solve for x
    x = 181,241,589,727.11/485,409.41
  6. Step 6: Final answer
    x = 373,378.81

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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.