Home / 985,272.45-1,477,899.76-311,353.86

Finding the Fourth Proportional to 985,272.45, 1,477,899.76 and 311,353.86

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Solution

The fourth proportional to 985,272.45, 1,477,899.76 and 311,353.86 is: 467,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,272.45 : 1,477,899.76 = 311,353.86 : x
  2. Step 2: Convert to fraction form
    985,272.45/1,477,899.76 = 311,353.86/x
  3. Step 3: Cross multiply
    985,272.45x = 1,477,899.76 × 311,353.86
  4. Step 4: Simplify right side
    985,272.45x = 460,149,794,969.07
  5. Step 5: Solve for x
    x = 460,149,794,969.07/985,272.45
  6. Step 6: Final answer
    x = 467,027.97

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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.