Home / 801,438.80-1,105,985.52-438,884.82

Finding the Fourth Proportional to 801,438.80, 1,105,985.52 and 438,884.82

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Solution

The fourth proportional to 801,438.80, 1,105,985.52 and 438,884.82 is: 605,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,438.80 : 1,105,985.52 = 438,884.82 : x
  2. Step 2: Convert to fraction form
    801,438.80/1,105,985.52 = 438,884.82/x
  3. Step 3: Cross multiply
    801,438.80x = 1,105,985.52 × 438,884.82
  4. Step 4: Simplify right side
    801,438.80x = 485,400,255,867.81
  5. Step 5: Solve for x
    x = 485,400,255,867.81/801,438.80
  6. Step 6: Final answer
    x = 605,661.04

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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.