Home / 1,191,640.40-1,783,313.40-818,392.40

Finding the Fourth Proportional to 1,191,640.40, 1,783,313.40 and 818,392.40

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Solution

The fourth proportional to 1,191,640.40, 1,783,313.40 and 818,392.40 is: 1,224,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,640.40 : 1,783,313.40 = 818,392.40 : x
  2. Step 2: Convert to fraction form
    1,191,640.40/1,783,313.40 = 818,392.40/x
  3. Step 3: Cross multiply
    1,191,640.40x = 1,783,313.40 × 818,392.40
  4. Step 4: Simplify right side
    1,191,640.40x = 1,459,450,133,378.16
  5. Step 5: Solve for x
    x = 1,459,450,133,378.16/1,191,640.40
  6. Step 6: Final answer
    x = 1,224,740.39

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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.