Home / 990,052.38-1,485,066-316,125.12

Finding the Fourth Proportional to 990,052.38, 1,485,066 and 316,125.12

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Solution

The fourth proportional to 990,052.38, 1,485,066 and 316,125.12 is: 474,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,052.38 : 1,485,066 = 316,125.12 : x
  2. Step 2: Convert to fraction form
    990,052.38/1,485,066 = 316,125.12/x
  3. Step 3: Cross multiply
    990,052.38x = 1,485,066 × 316,125.12
  4. Step 4: Simplify right side
    990,052.38x = 469,466,667,457.92
  5. Step 5: Solve for x
    x = 469,466,667,457.92/990,052.38
  6. Step 6: Final answer
    x = 474,183.67

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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.