Home / 1,230,253.92-1,697,745.15-686,390.09

Finding the Fourth Proportional to 1,230,253.92, 1,697,745.15 and 686,390.09

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Solution

The fourth proportional to 1,230,253.92, 1,697,745.15 and 686,390.09 is: 947,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,253.92 : 1,697,745.15 = 686,390.09 : x
  2. Step 2: Convert to fraction form
    1,230,253.92/1,697,745.15 = 686,390.09/x
  3. Step 3: Cross multiply
    1,230,253.92x = 1,697,745.15 × 686,390.09
  4. Step 4: Simplify right side
    1,230,253.92x = 1,165,315,437,816.84
  5. Step 5: Solve for x
    x = 1,165,315,437,816.84/1,230,253.92
  6. Step 6: Final answer
    x = 947,215.38

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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.