Home / 1,118,744.66-1,679,580.46-664,165.78

Finding the Fourth Proportional to 1,118,744.66, 1,679,580.46 and 664,165.78

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Solution

The fourth proportional to 1,118,744.66, 1,679,580.46 and 664,165.78 is: 997,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,744.66 : 1,679,580.46 = 664,165.78 : x
  2. Step 2: Convert to fraction form
    1,118,744.66/1,679,580.46 = 664,165.78/x
  3. Step 3: Cross multiply
    1,118,744.66x = 1,679,580.46 × 664,165.78
  4. Step 4: Simplify right side
    1,118,744.66x = 1,115,519,862,919.91
  5. Step 5: Solve for x
    x = 1,115,519,862,919.91/1,118,744.66
  6. Step 6: Final answer
    x = 997,117.48

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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.