Home / 812,692.02-1,219,118.20-280,142.94

Finding the Fourth Proportional to 812,692.02, 1,219,118.20 and 280,142.94

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Solution

The fourth proportional to 812,692.02, 1,219,118.20 and 280,142.94 is: 420,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,692.02 : 1,219,118.20 = 280,142.94 : x
  2. Step 2: Convert to fraction form
    812,692.02/1,219,118.20 = 280,142.94/x
  3. Step 3: Cross multiply
    812,692.02x = 1,219,118.20 × 280,142.94
  4. Step 4: Simplify right side
    812,692.02x = 341,527,356,755.51
  5. Step 5: Solve for x
    x = 341,527,356,755.51/812,692.02
  6. Step 6: Final answer
    x = 420,242.05

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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.