Home / 1,442,138.58-1,985,595.80-1,269,939.67

Finding the Fourth Proportional to 1,442,138.58, 1,985,595.80 and 1,269,939.67

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Solution

The fourth proportional to 1,442,138.58, 1,985,595.80 and 1,269,939.67 is: 1,748,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,138.58 : 1,985,595.80 = 1,269,939.67 : x
  2. Step 2: Convert to fraction form
    1,442,138.58/1,985,595.80 = 1,269,939.67/x
  3. Step 3: Cross multiply
    1,442,138.58x = 1,985,595.80 × 1,269,939.67
  4. Step 4: Simplify right side
    1,442,138.58x = 2,521,586,863,691.70
  5. Step 5: Solve for x
    x = 2,521,586,863,691.70/1,442,138.58
  6. Step 6: Final answer
    x = 1,748,505.24

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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.