Home / 638,088.21-880,580.25-351,626.76

Finding the Fourth Proportional to 638,088.21, 880,580.25 and 351,626.76

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Solution

The fourth proportional to 638,088.21, 880,580.25 and 351,626.76 is: 485,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,088.21 : 880,580.25 = 351,626.76 : x
  2. Step 2: Convert to fraction form
    638,088.21/880,580.25 = 351,626.76/x
  3. Step 3: Cross multiply
    638,088.21x = 880,580.25 × 351,626.76
  4. Step 4: Simplify right side
    638,088.21x = 309,635,580,227.49
  5. Step 5: Solve for x
    x = 309,635,580,227.49/638,088.21
  6. Step 6: Final answer
    x = 485,255.13

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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.