Home / 2,914,718.40-4,372,077.60-919,915.20

Finding the Fourth Proportional to 2,914,718.40, 4,372,077.60 and 919,915.20

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Solution

The fourth proportional to 2,914,718.40, 4,372,077.60 and 919,915.20 is: 1,379,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914,718.40 : 4,372,077.60 = 919,915.20 : x
  2. Step 2: Convert to fraction form
    2,914,718.40/4,372,077.60 = 919,915.20/x
  3. Step 3: Cross multiply
    2,914,718.40x = 4,372,077.60 × 919,915.20
  4. Step 4: Simplify right side
    2,914,718.40x = 4,021,940,639,819.52
  5. Step 5: Solve for x
    x = 4,021,940,639,819.52/2,914,718.40
  6. Step 6: Final answer
    x = 1,379,872.80

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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.