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Finding the Fourth Proportional to 580,092.93, 800,675.39 and 396,405.89

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Solution

The fourth proportional to 580,092.93, 800,675.39 and 396,405.89 is: 547,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,092.93 : 800,675.39 = 396,405.89 : x
  2. Step 2: Convert to fraction form
    580,092.93/800,675.39 = 396,405.89/x
  3. Step 3: Cross multiply
    580,092.93x = 800,675.39 × 396,405.89
  4. Step 4: Simplify right side
    580,092.93x = 317,392,440,564.22
  5. Step 5: Solve for x
    x = 317,392,440,564.22/580,092.93
  6. Step 6: Final answer
    x = 547,140.68

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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.