Home / 1,451,873.88-2,178,253.89-742,400.28

Finding the Fourth Proportional to 1,451,873.88, 2,178,253.89 and 742,400.28

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Solution

The fourth proportional to 1,451,873.88, 2,178,253.89 and 742,400.28 is: 1,113,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,873.88 : 2,178,253.89 = 742,400.28 : x
  2. Step 2: Convert to fraction form
    1,451,873.88/2,178,253.89 = 742,400.28/x
  3. Step 3: Cross multiply
    1,451,873.88x = 2,178,253.89 × 742,400.28
  4. Step 4: Simplify right side
    1,451,873.88x = 1,617,136,297,847.09
  5. Step 5: Solve for x
    x = 1,617,136,297,847.09/1,451,873.88
  6. Step 6: Final answer
    x = 1,113,826.98

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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.