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Finding the Fourth Proportional to 613,644.50, 846,907.18 and 345,424.34

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Solution

The fourth proportional to 613,644.50, 846,907.18 and 345,424.34 is: 476,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,644.50 : 846,907.18 = 345,424.34 : x
  2. Step 2: Convert to fraction form
    613,644.50/846,907.18 = 345,424.34/x
  3. Step 3: Cross multiply
    613,644.50x = 846,907.18 × 345,424.34
  4. Step 4: Simplify right side
    613,644.50x = 292,542,353,692.76
  5. Step 5: Solve for x
    x = 292,542,353,692.76/613,644.50
  6. Step 6: Final answer
    x = 476,729.37

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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.