Home / 638,231.85-880,748.55-347,846.04

Finding the Fourth Proportional to 638,231.85, 880,748.55 and 347,846.04

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Solution

The fourth proportional to 638,231.85, 880,748.55 and 347,846.04 is: 480,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,231.85 : 880,748.55 = 347,846.04 : x
  2. Step 2: Convert to fraction form
    638,231.85/880,748.55 = 347,846.04/x
  3. Step 3: Cross multiply
    638,231.85x = 880,748.55 × 347,846.04
  4. Step 4: Simplify right side
    638,231.85x = 306,364,895,353.24
  5. Step 5: Solve for x
    x = 306,364,895,353.24/638,231.85
  6. Step 6: Final answer
    x = 480,021.32

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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.