Home / 1,239,990.57-1,711,373.75-756,836.48

Finding the Fourth Proportional to 1,239,990.57, 1,711,373.75 and 756,836.48

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Solution

The fourth proportional to 1,239,990.57, 1,711,373.75 and 756,836.48 is: 1,044,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,990.57 : 1,711,373.75 = 756,836.48 : x
  2. Step 2: Convert to fraction form
    1,239,990.57/1,711,373.75 = 756,836.48/x
  3. Step 3: Cross multiply
    1,239,990.57x = 1,711,373.75 × 756,836.48
  4. Step 4: Simplify right side
    1,239,990.57x = 1,295,230,084,914.40
  5. Step 5: Solve for x
    x = 1,295,230,084,914.40/1,239,990.57
  6. Step 6: Final answer
    x = 1,044,548.33

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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.