Home / 1,123,811.90-1,685,437.27-440,837.57

Finding the Fourth Proportional to 1,123,811.90, 1,685,437.27 and 440,837.57

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Solution

The fourth proportional to 1,123,811.90, 1,685,437.27 and 440,837.57 is: 661,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,811.90 : 1,685,437.27 = 440,837.57 : x
  2. Step 2: Convert to fraction form
    1,123,811.90/1,685,437.27 = 440,837.57/x
  3. Step 3: Cross multiply
    1,123,811.90x = 1,685,437.27 × 440,837.57
  4. Step 4: Simplify right side
    1,123,811.90x = 743,004,073,605.73
  5. Step 5: Solve for x
    x = 743,004,073,605.73/1,123,811.90
  6. Step 6: Final answer
    x = 661,146.29

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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.