Home / 856,136.20-1,281,746.70-831,560.20

Finding the Fourth Proportional to 856,136.20, 1,281,746.70 and 831,560.20

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Solution

The fourth proportional to 856,136.20, 1,281,746.70 and 831,560.20 is: 1,244,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,136.20 : 1,281,746.70 = 831,560.20 : x
  2. Step 2: Convert to fraction form
    856,136.20/1,281,746.70 = 831,560.20/x
  3. Step 3: Cross multiply
    856,136.20x = 1,281,746.70 × 831,560.20
  4. Step 4: Simplify right side
    856,136.20x = 1,065,849,542,201.34
  5. Step 5: Solve for x
    x = 1,065,849,542,201.34/856,136.20
  6. Step 6: Final answer
    x = 1,244,953.25

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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.