Home / 1,286,639.53-1,927,523.10-858,885.41

Finding the Fourth Proportional to 1,286,639.53, 1,927,523.10 and 858,885.41

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Solution

The fourth proportional to 1,286,639.53, 1,927,523.10 and 858,885.41 is: 1,286,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,639.53 : 1,927,523.10 = 858,885.41 : x
  2. Step 2: Convert to fraction form
    1,286,639.53/1,927,523.10 = 858,885.41/x
  3. Step 3: Cross multiply
    1,286,639.53x = 1,927,523.10 × 858,885.41
  4. Step 4: Simplify right side
    1,286,639.53x = 1,655,521,468,027.97
  5. Step 5: Solve for x
    x = 1,655,521,468,027.97/1,286,639.53
  6. Step 6: Final answer
    x = 1,286,701.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.