Home / 677,731.38-1,015,213.06-378,371.38

Finding the Fourth Proportional to 677,731.38, 1,015,213.06 and 378,371.38

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Solution

The fourth proportional to 677,731.38, 1,015,213.06 and 378,371.38 is: 566,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,731.38 : 1,015,213.06 = 378,371.38 : x
  2. Step 2: Convert to fraction form
    677,731.38/1,015,213.06 = 378,371.38/x
  3. Step 3: Cross multiply
    677,731.38x = 1,015,213.06 × 378,371.38
  4. Step 4: Simplify right side
    677,731.38x = 384,127,566,506.22
  5. Step 5: Solve for x
    x = 384,127,566,506.22/677,731.38
  6. Step 6: Final answer
    x = 566,784.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.