Home / 790,575.76-1,090,993.20-427,999.48

Finding the Fourth Proportional to 790,575.76, 1,090,993.20 and 427,999.48

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Solution

The fourth proportional to 790,575.76, 1,090,993.20 and 427,999.48 is: 590,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,575.76 : 1,090,993.20 = 427,999.48 : x
  2. Step 2: Convert to fraction form
    790,575.76/1,090,993.20 = 427,999.48/x
  3. Step 3: Cross multiply
    790,575.76x = 1,090,993.20 × 427,999.48
  4. Step 4: Simplify right side
    790,575.76x = 466,944,522,283.54
  5. Step 5: Solve for x
    x = 466,944,522,283.54/790,575.76
  6. Step 6: Final answer
    x = 590,638.55

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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.