Home / 820,862.15-1,231,297.34-371,056.38

Finding the Fourth Proportional to 820,862.15, 1,231,297.34 and 371,056.38

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Solution

The fourth proportional to 820,862.15, 1,231,297.34 and 371,056.38 is: 556,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,862.15 : 1,231,297.34 = 371,056.38 : x
  2. Step 2: Convert to fraction form
    820,862.15/1,231,297.34 = 371,056.38/x
  3. Step 3: Cross multiply
    820,862.15x = 1,231,297.34 × 371,056.38
  4. Step 4: Simplify right side
    820,862.15x = 456,880,731,828.75
  5. Step 5: Solve for x
    x = 456,880,731,828.75/820,862.15
  6. Step 6: Final answer
    x = 556,586.43

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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.