Home / 1,887,787.68-2,605,190.40-1,071,861.72

Finding the Fourth Proportional to 1,887,787.68, 2,605,190.40 and 1,071,861.72

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Solution

The fourth proportional to 1,887,787.68, 2,605,190.40 and 1,071,861.72 is: 1,479,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,787.68 : 2,605,190.40 = 1,071,861.72 : x
  2. Step 2: Convert to fraction form
    1,887,787.68/2,605,190.40 = 1,071,861.72/x
  3. Step 3: Cross multiply
    1,887,787.68x = 2,605,190.40 × 1,071,861.72
  4. Step 4: Simplify right side
    1,887,787.68x = 2,792,403,863,071.49
  5. Step 5: Solve for x
    x = 2,792,403,863,071.49/1,887,787.68
  6. Step 6: Final answer
    x = 1,479,193.82

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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.