Home / 1,620,915.64-2,429,200.14-1,261,520.48

Finding the Fourth Proportional to 1,620,915.64, 2,429,200.14 and 1,261,520.48

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Solution

The fourth proportional to 1,620,915.64, 2,429,200.14 and 1,261,520.48 is: 1,890,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,915.64 : 2,429,200.14 = 1,261,520.48 : x
  2. Step 2: Convert to fraction form
    1,620,915.64/2,429,200.14 = 1,261,520.48/x
  3. Step 3: Cross multiply
    1,620,915.64x = 2,429,200.14 × 1,261,520.48
  4. Step 4: Simplify right side
    1,620,915.64x = 3,064,485,726,628.87
  5. Step 5: Solve for x
    x = 3,064,485,726,628.87/1,620,915.64
  6. Step 6: Final answer
    x = 1,890,589.28

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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.