Home / 856,100.20-1,281,692.70-831,524.20

Finding the Fourth Proportional to 856,100.20, 1,281,692.70 and 831,524.20

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Solution

The fourth proportional to 856,100.20, 1,281,692.70 and 831,524.20 is: 1,244,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,100.20 : 1,281,692.70 = 831,524.20 : x
  2. Step 2: Convert to fraction form
    856,100.20/1,281,692.70 = 831,524.20/x
  3. Step 3: Cross multiply
    856,100.20x = 1,281,692.70 × 831,524.20
  4. Step 4: Simplify right side
    856,100.20x = 1,065,758,497,013.34
  5. Step 5: Solve for x
    x = 1,065,758,497,013.34/856,100.20
  6. Step 6: Final answer
    x = 1,244,899.25

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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.