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Finding the Fourth Proportional to 644,820.70, 967,231.05 and 579,502.30

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Solution

The fourth proportional to 644,820.70, 967,231.05 and 579,502.30 is: 869,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,820.70 : 967,231.05 = 579,502.30 : x
  2. Step 2: Convert to fraction form
    644,820.70/967,231.05 = 579,502.30/x
  3. Step 3: Cross multiply
    644,820.70x = 967,231.05 × 579,502.30
  4. Step 4: Simplify right side
    644,820.70x = 560,512,618,106.42
  5. Step 5: Solve for x
    x = 560,512,618,106.42/644,820.70
  6. Step 6: Final answer
    x = 869,253.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.