Home / 1,248,664.53-1,872,919.90-768,983.74

Finding the Fourth Proportional to 1,248,664.53, 1,872,919.90 and 768,983.74

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Solution

The fourth proportional to 1,248,664.53, 1,872,919.90 and 768,983.74 is: 1,153,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,664.53 : 1,872,919.90 = 768,983.74 : x
  2. Step 2: Convert to fraction form
    1,248,664.53/1,872,919.90 = 768,983.74/x
  3. Step 3: Cross multiply
    1,248,664.53x = 1,872,919.90 × 768,983.74
  4. Step 4: Simplify right side
    1,248,664.53x = 1,440,244,949,422.43
  5. Step 5: Solve for x
    x = 1,440,244,949,422.43/1,248,664.53
  6. Step 6: Final answer
    x = 1,153,428.25

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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.