Home / 1,277,135.40-1,761,520.59-868,510.92

Finding the Fourth Proportional to 1,277,135.40, 1,761,520.59 and 868,510.92

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Solution

The fourth proportional to 1,277,135.40, 1,761,520.59 and 868,510.92 is: 1,197,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,135.40 : 1,761,520.59 = 868,510.92 : x
  2. Step 2: Convert to fraction form
    1,277,135.40/1,761,520.59 = 868,510.92/x
  3. Step 3: Cross multiply
    1,277,135.40x = 1,761,520.59 × 868,510.92
  4. Step 4: Simplify right side
    1,277,135.40x = 1,529,899,868,219.84
  5. Step 5: Solve for x
    x = 1,529,899,868,219.84/1,277,135.40
  6. Step 6: Final answer
    x = 1,197,915.17

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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.