Home / 1,188,215.40-1,782,323.10-908,279.40

Finding the Fourth Proportional to 1,188,215.40, 1,782,323.10 and 908,279.40

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Solution

The fourth proportional to 1,188,215.40, 1,782,323.10 and 908,279.40 is: 1,362,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,215.40 : 1,782,323.10 = 908,279.40 : x
  2. Step 2: Convert to fraction form
    1,188,215.40/1,782,323.10 = 908,279.40/x
  3. Step 3: Cross multiply
    1,188,215.40x = 1,782,323.10 × 908,279.40
  4. Step 4: Simplify right side
    1,188,215.40x = 1,618,847,355,874.14
  5. Step 5: Solve for x
    x = 1,618,847,355,874.14/1,188,215.40
  6. Step 6: Final answer
    x = 1,362,419.10

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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.