Home / 1,620,928.64-2,429,219.64-1,261,533.48

Finding the Fourth Proportional to 1,620,928.64, 2,429,219.64 and 1,261,533.48

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Solution

The fourth proportional to 1,620,928.64, 2,429,219.64 and 1,261,533.48 is: 1,890,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,928.64 : 2,429,219.64 = 1,261,533.48 : x
  2. Step 2: Convert to fraction form
    1,620,928.64/2,429,219.64 = 1,261,533.48/x
  3. Step 3: Cross multiply
    1,620,928.64x = 2,429,219.64 × 1,261,533.48
  4. Step 4: Simplify right side
    1,620,928.64x = 3,064,541,906,133.55
  5. Step 5: Solve for x
    x = 3,064,541,906,133.55/1,620,928.64
  6. Step 6: Final answer
    x = 1,890,608.77

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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.