Home / 768,185.90-1,151,628.18-318,626.18

Finding the Fourth Proportional to 768,185.90, 1,151,628.18 and 318,626.18

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Solution

The fourth proportional to 768,185.90, 1,151,628.18 and 318,626.18 is: 477,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,185.90 : 1,151,628.18 = 318,626.18 : x
  2. Step 2: Convert to fraction form
    768,185.90/1,151,628.18 = 318,626.18/x
  3. Step 3: Cross multiply
    768,185.90x = 1,151,628.18 × 318,626.18
  4. Step 4: Simplify right side
    768,185.90x = 366,938,882,015.61
  5. Step 5: Solve for x
    x = 366,938,882,015.61/768,185.90
  6. Step 6: Final answer
    x = 477,669.38

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1.5x scale

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.