Home / 1,388,555.28-1,916,350.52-799,875.09

Finding the Fourth Proportional to 1,388,555.28, 1,916,350.52 and 799,875.09

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Solution

The fourth proportional to 1,388,555.28, 1,916,350.52 and 799,875.09 is: 1,103,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,555.28 : 1,916,350.52 = 799,875.09 : x
  2. Step 2: Convert to fraction form
    1,388,555.28/1,916,350.52 = 799,875.09/x
  3. Step 3: Cross multiply
    1,388,555.28x = 1,916,350.52 × 799,875.09
  4. Step 4: Simplify right side
    1,388,555.28x = 1,532,841,040,657.17
  5. Step 5: Solve for x
    x = 1,532,841,040,657.17/1,388,555.28
  6. Step 6: Final answer
    x = 1,103,910.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.