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Finding the Fourth Proportional to 637,680.74, 880,039.22 and 351,200.75

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Solution

The fourth proportional to 637,680.74, 880,039.22 and 351,200.75 is: 484,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,680.74 : 880,039.22 = 351,200.75 : x
  2. Step 2: Convert to fraction form
    637,680.74/880,039.22 = 351,200.75/x
  3. Step 3: Cross multiply
    637,680.74x = 880,039.22 × 351,200.75
  4. Step 4: Simplify right side
    637,680.74x = 309,070,427,937.22
  5. Step 5: Solve for x
    x = 309,070,427,937.22/637,680.74
  6. Step 6: Final answer
    x = 484,678.95

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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.