Home / 801,424.84-1,105,979.88-438,842.92

Finding the Fourth Proportional to 801,424.84, 1,105,979.88 and 438,842.92

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Solution

The fourth proportional to 801,424.84, 1,105,979.88 and 438,842.92 is: 605,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,424.84 : 1,105,979.88 = 438,842.92 : x
  2. Step 2: Convert to fraction form
    801,424.84/1,105,979.88 = 438,842.92/x
  3. Step 3: Cross multiply
    801,424.84x = 1,105,979.88 × 438,842.92
  4. Step 4: Simplify right side
    801,424.84x = 485,351,440,000.45
  5. Step 5: Solve for x
    x = 485,351,440,000.45/801,424.84
  6. Step 6: Final answer
    x = 605,610.68

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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.