Home / 1,230,187.85-1,697,660.30-686,323.75

Finding the Fourth Proportional to 1,230,187.85, 1,697,660.30 and 686,323.75

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Solution

The fourth proportional to 1,230,187.85, 1,697,660.30 and 686,323.75 is: 947,127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,187.85 : 1,697,660.30 = 686,323.75 : x
  2. Step 2: Convert to fraction form
    1,230,187.85/1,697,660.30 = 686,323.75/x
  3. Step 3: Cross multiply
    1,230,187.85x = 1,697,660.30 × 686,323.75
  4. Step 4: Simplify right side
    1,230,187.85x = 1,165,144,583,096.31
  5. Step 5: Solve for x
    x = 1,165,144,583,096.31/1,230,187.85
  6. Step 6: Final answer
    x = 947,127.37

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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.