Home / 645,629.20-968,314.20-308,669.20

Finding the Fourth Proportional to 645,629.20, 968,314.20 and 308,669.20

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Solution

The fourth proportional to 645,629.20, 968,314.20 and 308,669.20 is: 462,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,629.20 : 968,314.20 = 308,669.20 : x
  2. Step 2: Convert to fraction form
    645,629.20/968,314.20 = 308,669.20/x
  3. Step 3: Cross multiply
    645,629.20x = 968,314.20 × 308,669.20
  4. Step 4: Simplify right side
    645,629.20x = 298,888,769,462.64
  5. Step 5: Solve for x
    x = 298,888,769,462.64/645,629.20
  6. Step 6: Final answer
    x = 462,941.84

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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.