Home / 1,315,696.10-1,815,660.09-712,084.10

Finding the Fourth Proportional to 1,315,696.10, 1,815,660.09 and 712,084.10

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Solution

The fourth proportional to 1,315,696.10, 1,815,660.09 and 712,084.10 is: 982,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,696.10 : 1,815,660.09 = 712,084.10 : x
  2. Step 2: Convert to fraction form
    1,315,696.10/1,815,660.09 = 712,084.10/x
  3. Step 3: Cross multiply
    1,315,696.10x = 1,815,660.09 × 712,084.10
  4. Step 4: Simplify right side
    1,315,696.10x = 1,292,902,672,015.27
  5. Step 5: Solve for x
    x = 1,292,902,672,015.27/1,315,696.10
  6. Step 6: Final answer
    x = 982,675.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.