Home / 801,420.84-1,105,974.36-438,838.92

Finding the Fourth Proportional to 801,420.84, 1,105,974.36 and 438,838.92

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Solution

The fourth proportional to 801,420.84, 1,105,974.36 and 438,838.92 is: 605,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,420.84 : 1,105,974.36 = 438,838.92 : x
  2. Step 2: Convert to fraction form
    801,420.84/1,105,974.36 = 438,838.92/x
  3. Step 3: Cross multiply
    801,420.84x = 1,105,974.36 × 438,838.92
  4. Step 4: Simplify right side
    801,420.84x = 485,344,593,690.09
  5. Step 5: Solve for x
    x = 485,344,593,690.09/801,420.84
  6. Step 6: Final answer
    x = 605,605.16

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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.