Home / 1,230,115.27-1,697,559.78-686,251.03

Finding the Fourth Proportional to 1,230,115.27, 1,697,559.78 and 686,251.03

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Solution

The fourth proportional to 1,230,115.27, 1,697,559.78 and 686,251.03 is: 947,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,115.27 : 1,697,559.78 = 686,251.03 : x
  2. Step 2: Convert to fraction form
    1,230,115.27/1,697,559.78 = 686,251.03/x
  3. Step 3: Cross multiply
    1,230,115.27x = 1,697,559.78 × 686,251.03
  4. Step 4: Simplify right side
    1,230,115.27x = 1,164,952,147,511.57
  5. Step 5: Solve for x
    x = 1,164,952,147,511.57/1,230,115.27
  6. Step 6: Final answer
    x = 947,026.82

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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.