Home / 790,255.30-1,090,553.64-427,679.48

Finding the Fourth Proportional to 790,255.30, 1,090,553.64 and 427,679.48

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Solution

The fourth proportional to 790,255.30, 1,090,553.64 and 427,679.48 is: 590,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,255.30 : 1,090,553.64 = 427,679.48 : x
  2. Step 2: Convert to fraction form
    790,255.30/1,090,553.64 = 427,679.48/x
  3. Step 3: Cross multiply
    790,255.30x = 1,090,553.64 × 427,679.48
  4. Step 4: Simplify right side
    790,255.30x = 466,407,413,667.31
  5. Step 5: Solve for x
    x = 466,407,413,667.31/790,255.30
  6. Step 6: Final answer
    x = 590,198.40

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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.