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Finding the Fourth Proportional to 443,692.16, 612,420.78 and 262,467.09

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Solution

The fourth proportional to 443,692.16, 612,420.78 and 262,467.09 is: 362,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,692.16 : 612,420.78 = 262,467.09 : x
  2. Step 2: Convert to fraction form
    443,692.16/612,420.78 = 262,467.09/x
  3. Step 3: Cross multiply
    443,692.16x = 612,420.78 × 262,467.09
  4. Step 4: Simplify right side
    443,692.16x = 160,740,299,982.13
  5. Step 5: Solve for x
    x = 160,740,299,982.13/443,692.16
  6. Step 6: Final answer
    x = 362,278.88

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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.