Home / 801,320.77-1,105,788.47-438,738.04

Finding the Fourth Proportional to 801,320.77, 1,105,788.47 and 438,738.04

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Solution

The fourth proportional to 801,320.77, 1,105,788.47 and 438,738.04 is: 605,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,320.77 : 1,105,788.47 = 438,738.04 : x
  2. Step 2: Convert to fraction form
    801,320.77/1,105,788.47 = 438,738.04/x
  3. Step 3: Cross multiply
    801,320.77x = 1,105,788.47 × 438,738.04
  4. Step 4: Simplify right side
    801,320.77x = 485,151,465,982.40
  5. Step 5: Solve for x
    x = 485,151,465,982.40/801,320.77
  6. Step 6: Final answer
    x = 605,439.77

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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.