Home / 1,299,139.58-1,948,140.75-691,799.96

Finding the Fourth Proportional to 1,299,139.58, 1,948,140.75 and 691,799.96

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Solution

The fourth proportional to 1,299,139.58, 1,948,140.75 and 691,799.96 is: 1,037,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,139.58 : 1,948,140.75 = 691,799.96 : x
  2. Step 2: Convert to fraction form
    1,299,139.58/1,948,140.75 = 691,799.96/x
  3. Step 3: Cross multiply
    1,299,139.58x = 1,948,140.75 × 691,799.96
  4. Step 4: Simplify right side
    1,299,139.58x = 1,347,723,692,924.37
  5. Step 5: Solve for x
    x = 1,347,723,692,924.37/1,299,139.58
  6. Step 6: Final answer
    x = 1,037,397.15

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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.