Home / 1,188,385.36-1,783,709.92-737,742.40

Finding the Fourth Proportional to 1,188,385.36, 1,783,709.92 and 737,742.40

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Solution

The fourth proportional to 1,188,385.36, 1,783,709.92 and 737,742.40 is: 1,107,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,385.36 : 1,783,709.92 = 737,742.40 : x
  2. Step 2: Convert to fraction form
    1,188,385.36/1,783,709.92 = 737,742.40/x
  3. Step 3: Cross multiply
    1,188,385.36x = 1,783,709.92 × 737,742.40
  4. Step 4: Simplify right side
    1,188,385.36x = 1,315,918,437,284.61
  5. Step 5: Solve for x
    x = 1,315,918,437,284.61/1,188,385.36
  6. Step 6: Final answer
    x = 1,107,316.26

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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.