Home / 831,937.80-1,247,906.70-824,939.40

Finding the Fourth Proportional to 831,937.80, 1,247,906.70 and 824,939.40

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Solution

The fourth proportional to 831,937.80, 1,247,906.70 and 824,939.40 is: 1,237,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,937.80 : 1,247,906.70 = 824,939.40 : x
  2. Step 2: Convert to fraction form
    831,937.80/1,247,906.70 = 824,939.40/x
  3. Step 3: Cross multiply
    831,937.80x = 1,247,906.70 × 824,939.40
  4. Step 4: Simplify right side
    831,937.80x = 1,029,447,404,353.98
  5. Step 5: Solve for x
    x = 1,029,447,404,353.98/831,937.80
  6. Step 6: Final answer
    x = 1,237,409.10

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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.