Home / 985,142.72-1,477,872.07-416,529.81

Finding the Fourth Proportional to 985,142.72, 1,477,872.07 and 416,529.81

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Solution

The fourth proportional to 985,142.72, 1,477,872.07 and 416,529.81 is: 624,861.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,142.72 : 1,477,872.07 = 416,529.81 : x
  2. Step 2: Convert to fraction form
    985,142.72/1,477,872.07 = 416,529.81/x
  3. Step 3: Cross multiply
    985,142.72x = 1,477,872.07 × 416,529.81
  4. Step 4: Simplify right side
    985,142.72x = 615,577,771,480.08
  5. Step 5: Solve for x
    x = 615,577,771,480.08/985,142.72
  6. Step 6: Final answer
    x = 624,861.51

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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.