Home / 638,227.85-880,743.03-347,842.04

Finding the Fourth Proportional to 638,227.85, 880,743.03 and 347,842.04

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Solution

The fourth proportional to 638,227.85, 880,743.03 and 347,842.04 is: 480,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,227.85 : 880,743.03 = 347,842.04 : x
  2. Step 2: Convert to fraction form
    638,227.85/880,743.03 = 347,842.04/x
  3. Step 3: Cross multiply
    638,227.85x = 880,743.03 × 347,842.04
  4. Step 4: Simplify right side
    638,227.85x = 306,359,452,270.98
  5. Step 5: Solve for x
    x = 306,359,452,270.98/638,227.85
  6. Step 6: Final answer
    x = 480,015.80

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1.5x scale

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.