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Finding the Fourth Proportional to 580,220.76, 800,964.54 and 353,956.44

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Solution

The fourth proportional to 580,220.76, 800,964.54 and 353,956.44 is: 488,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,220.76 : 800,964.54 = 353,956.44 : x
  2. Step 2: Convert to fraction form
    580,220.76/800,964.54 = 353,956.44/x
  3. Step 3: Cross multiply
    580,220.76x = 800,964.54 × 353,956.44
  4. Step 4: Simplify right side
    580,220.76x = 283,506,557,144.64
  5. Step 5: Solve for x
    x = 283,506,557,144.64/580,220.76
  6. Step 6: Final answer
    x = 488,618.43

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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.