Home / 3,840,479.28-5,299,844.64-2,121,599.76

Finding the Fourth Proportional to 3,840,479.28, 5,299,844.64 and 2,121,599.76

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Solution

The fourth proportional to 3,840,479.28, 5,299,844.64 and 2,121,599.76 is: 2,927,798.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,479.28 : 5,299,844.64 = 2,121,599.76 : x
  2. Step 2: Convert to fraction form
    3,840,479.28/5,299,844.64 = 2,121,599.76/x
  3. Step 3: Cross multiply
    3,840,479.28x = 5,299,844.64 × 2,121,599.76
  4. Step 4: Simplify right side
    3,840,479.28x = 11,244,149,116,261.29
  5. Step 5: Solve for x
    x = 11,244,149,116,261.29/3,840,479.28
  6. Step 6: Final answer
    x = 2,927,798.41

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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.