Home / 637,998.92-880,434.18-351,512.36

Finding the Fourth Proportional to 637,998.92, 880,434.18 and 351,512.36

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Solution

The fourth proportional to 637,998.92, 880,434.18 and 351,512.36 is: 485,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,998.92 : 880,434.18 = 351,512.36 : x
  2. Step 2: Convert to fraction form
    637,998.92/880,434.18 = 351,512.36/x
  3. Step 3: Cross multiply
    637,998.92x = 880,434.18 × 351,512.36
  4. Step 4: Simplify right side
    637,998.92x = 309,483,496,436.47
  5. Step 5: Solve for x
    x = 309,483,496,436.47/637,998.92
  6. Step 6: Final answer
    x = 485,084.67

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Double scale
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Similar ratio
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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.