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Finding the Fourth Proportional to 580,134.18, 800,572.75 and 321,996.07

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Solution

The fourth proportional to 580,134.18, 800,572.75 and 321,996.07 is: 444,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,134.18 : 800,572.75 = 321,996.07 : x
  2. Step 2: Convert to fraction form
    580,134.18/800,572.75 = 321,996.07/x
  3. Step 3: Cross multiply
    580,134.18x = 800,572.75 × 321,996.07
  4. Step 4: Simplify right side
    580,134.18x = 257,781,277,193.21
  5. Step 5: Solve for x
    x = 257,781,277,193.21/580,134.18
  6. Step 6: Final answer
    x = 444,347.68

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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.