Home / 801,434.04-1,105,980.84-438,881.64

Finding the Fourth Proportional to 801,434.04, 1,105,980.84 and 438,881.64

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Solution

The fourth proportional to 801,434.04, 1,105,980.84 and 438,881.64 is: 605,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,434.04 : 1,105,980.84 = 438,881.64 : x
  2. Step 2: Convert to fraction form
    801,434.04/1,105,980.84 = 438,881.64/x
  3. Step 3: Cross multiply
    801,434.04x = 1,105,980.84 × 438,881.64
  4. Step 4: Simplify right side
    801,434.04x = 485,394,684,867.78
  5. Step 5: Solve for x
    x = 485,394,684,867.78/801,434.04
  6. Step 6: Final answer
    x = 605,657.68

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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.