Home / 1,043,785.09-1,563,019.75-687,719.62

Finding the Fourth Proportional to 1,043,785.09, 1,563,019.75 and 687,719.62

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Solution

The fourth proportional to 1,043,785.09, 1,563,019.75 and 687,719.62 is: 1,029,828.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,785.09 : 1,563,019.75 = 687,719.62 : x
  2. Step 2: Convert to fraction form
    1,043,785.09/1,563,019.75 = 687,719.62/x
  3. Step 3: Cross multiply
    1,043,785.09x = 1,563,019.75 × 687,719.62
  4. Step 4: Simplify right side
    1,043,785.09x = 1,074,919,348,522.50
  5. Step 5: Solve for x
    x = 1,074,919,348,522.50/1,043,785.09
  6. Step 6: Final answer
    x = 1,029,828.23

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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.