Home / 801,284.96-1,105,731.23-438,639.36

Finding the Fourth Proportional to 801,284.96, 1,105,731.23 and 438,639.36

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Solution

The fourth proportional to 801,284.96, 1,105,731.23 and 438,639.36 is: 605,299.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,284.96 : 1,105,731.23 = 438,639.36 : x
  2. Step 2: Convert to fraction form
    801,284.96/1,105,731.23 = 438,639.36/x
  3. Step 3: Cross multiply
    801,284.96x = 1,105,731.23 × 438,639.36
  4. Step 4: Simplify right side
    801,284.96x = 485,017,236,866.02
  5. Step 5: Solve for x
    x = 485,017,236,866.02/801,284.96
  6. Step 6: Final answer
    x = 605,299.32

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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.