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Finding the Fourth Proportional to 434,692.80, 651,650.40 and 285,004.80

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Solution

The fourth proportional to 434,692.80, 651,650.40 and 285,004.80 is: 427,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,692.80 : 651,650.40 = 285,004.80 : x
  2. Step 2: Convert to fraction form
    434,692.80/651,650.40 = 285,004.80/x
  3. Step 3: Cross multiply
    434,692.80x = 651,650.40 × 285,004.80
  4. Step 4: Simplify right side
    434,692.80x = 185,723,491,921.92
  5. Step 5: Solve for x
    x = 185,723,491,921.92/434,692.80
  6. Step 6: Final answer
    x = 427,252.28

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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.