Home / 1,105,943.87-1,656,258.60-631,189.91

Finding the Fourth Proportional to 1,105,943.87, 1,656,258.60 and 631,189.91

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Solution

The fourth proportional to 1,105,943.87, 1,656,258.60 and 631,189.91 is: 945,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,943.87 : 1,656,258.60 = 631,189.91 : x
  2. Step 2: Convert to fraction form
    1,105,943.87/1,656,258.60 = 631,189.91/x
  3. Step 3: Cross multiply
    1,105,943.87x = 1,656,258.60 × 631,189.91
  4. Step 4: Simplify right side
    1,105,943.87x = 1,045,413,716,670.73
  5. Step 5: Solve for x
    x = 1,045,413,716,670.73/1,105,943.87
  6. Step 6: Final answer
    x = 945,268.33

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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.