Home / 831,816.80-1,247,725.20-824,818.40

Finding the Fourth Proportional to 831,816.80, 1,247,725.20 and 824,818.40

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Solution

The fourth proportional to 831,816.80, 1,247,725.20 and 824,818.40 is: 1,237,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,816.80 : 1,247,725.20 = 824,818.40 : x
  2. Step 2: Convert to fraction form
    831,816.80/1,247,725.20 = 824,818.40/x
  3. Step 3: Cross multiply
    831,816.80x = 1,247,725.20 × 824,818.40
  4. Step 4: Simplify right side
    831,816.80x = 1,029,146,703,103.68
  5. Step 5: Solve for x
    x = 1,029,146,703,103.68/831,816.80
  6. Step 6: Final answer
    x = 1,237,227.60

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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.