Home / 856,113.20-1,281,712.20-831,537.20

Finding the Fourth Proportional to 856,113.20, 1,281,712.20 and 831,537.20

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Solution

The fourth proportional to 856,113.20, 1,281,712.20 and 831,537.20 is: 1,244,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,113.20 : 1,281,712.20 = 831,537.20 : x
  2. Step 2: Convert to fraction form
    856,113.20/1,281,712.20 = 831,537.20/x
  3. Step 3: Cross multiply
    856,113.20x = 1,281,712.20 × 831,537.20
  4. Step 4: Simplify right side
    856,113.20x = 1,065,791,373,993.84
  5. Step 5: Solve for x
    x = 1,065,791,373,993.84/856,113.20
  6. Step 6: Final answer
    x = 1,244,918.75

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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.