Home / 1,277,132.40-1,761,516.45-868,507.92

Finding the Fourth Proportional to 1,277,132.40, 1,761,516.45 and 868,507.92

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Solution

The fourth proportional to 1,277,132.40, 1,761,516.45 and 868,507.92 is: 1,197,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,132.40 : 1,761,516.45 = 868,507.92 : x
  2. Step 2: Convert to fraction form
    1,277,132.40/1,761,516.45 = 868,507.92/x
  3. Step 3: Cross multiply
    1,277,132.40x = 1,761,516.45 × 868,507.92
  4. Step 4: Simplify right side
    1,277,132.40x = 1,529,890,988,035.28
  5. Step 5: Solve for x
    x = 1,529,890,988,035.28/1,277,132.40
  6. Step 6: Final answer
    x = 1,197,911.03

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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.