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Finding the Fourth Proportional to 644,806.67, 967,957.29 and 345,871.07

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Solution

The fourth proportional to 644,806.67, 967,957.29 and 345,871.07 is: 519,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,806.67 : 967,957.29 = 345,871.07 : x
  2. Step 2: Convert to fraction form
    644,806.67/967,957.29 = 345,871.07/x
  3. Step 3: Cross multiply
    644,806.67x = 967,957.29 × 345,871.07
  4. Step 4: Simplify right side
    644,806.67x = 334,788,421,877.25
  5. Step 5: Solve for x
    x = 334,788,421,877.25/644,806.67
  6. Step 6: Final answer
    x = 519,207.44

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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.