Home / 638,225.38-880,735.86-347,846.12

Finding the Fourth Proportional to 638,225.38, 880,735.86 and 347,846.12

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Solution

The fourth proportional to 638,225.38, 880,735.86 and 347,846.12 is: 480,019.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,225.38 : 880,735.86 = 347,846.12 : x
  2. Step 2: Convert to fraction form
    638,225.38/880,735.86 = 347,846.12/x
  3. Step 3: Cross multiply
    638,225.38x = 880,735.86 × 347,846.12
  4. Step 4: Simplify right side
    638,225.38x = 306,360,551,645.86
  5. Step 5: Solve for x
    x = 306,360,551,645.86/638,225.38
  6. Step 6: Final answer
    x = 480,019.38

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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.