Home / 831,806.80-1,247,710.20-824,808.40

Finding the Fourth Proportional to 831,806.80, 1,247,710.20 and 824,808.40

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Solution

The fourth proportional to 831,806.80, 1,247,710.20 and 824,808.40 is: 1,237,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,806.80 : 1,247,710.20 = 824,808.40 : x
  2. Step 2: Convert to fraction form
    831,806.80/1,247,710.20 = 824,808.40/x
  3. Step 3: Cross multiply
    831,806.80x = 1,247,710.20 × 824,808.40
  4. Step 4: Simplify right side
    831,806.80x = 1,029,121,853,725.68
  5. Step 5: Solve for x
    x = 1,029,121,853,725.68/831,806.80
  6. Step 6: Final answer
    x = 1,237,212.60

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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.