Home / 801,310.72-1,105,766.70-438,665.08

Finding the Fourth Proportional to 801,310.72, 1,105,766.70 and 438,665.08

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Solution

The fourth proportional to 801,310.72, 1,105,766.70 and 438,665.08 is: 605,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,310.72 : 1,105,766.70 = 438,665.08 : x
  2. Step 2: Convert to fraction form
    801,310.72/1,105,766.70 = 438,665.08/x
  3. Step 3: Cross multiply
    801,310.72x = 1,105,766.70 × 438,665.08
  4. Step 4: Simplify right side
    801,310.72x = 485,061,237,916.84
  5. Step 5: Solve for x
    x = 485,061,237,916.84/801,310.72
  6. Step 6: Final answer
    x = 605,334.77

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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.