Home / 777,355.50-1,073,019.06-455,169.18

Finding the Fourth Proportional to 777,355.50, 1,073,019.06 and 455,169.18

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Solution

The fourth proportional to 777,355.50, 1,073,019.06 and 455,169.18 is: 628,290.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,355.50 : 1,073,019.06 = 455,169.18 : x
  2. Step 2: Convert to fraction form
    777,355.50/1,073,019.06 = 455,169.18/x
  3. Step 3: Cross multiply
    777,355.50x = 1,073,019.06 × 455,169.18
  4. Step 4: Simplify right side
    777,355.50x = 488,405,205,664.57
  5. Step 5: Solve for x
    x = 488,405,205,664.57/777,355.50
  6. Step 6: Final answer
    x = 628,290.67

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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.