Home / 840,836.55-1,261,254.82-272,692.90

Finding the Fourth Proportional to 840,836.55, 1,261,254.82 and 272,692.90

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Solution

The fourth proportional to 840,836.55, 1,261,254.82 and 272,692.90 is: 409,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,836.55 : 1,261,254.82 = 272,692.90 : x
  2. Step 2: Convert to fraction form
    840,836.55/1,261,254.82 = 272,692.90/x
  3. Step 3: Cross multiply
    840,836.55x = 1,261,254.82 × 272,692.90
  4. Step 4: Simplify right side
    840,836.55x = 343,935,234,504.78
  5. Step 5: Solve for x
    x = 343,935,234,504.78/840,836.55
  6. Step 6: Final answer
    x = 409,039.35

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1.5x scale

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.