Home / 985,275.45-1,477,904.26-311,356.86

Finding the Fourth Proportional to 985,275.45, 1,477,904.26 and 311,356.86

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Solution

The fourth proportional to 985,275.45, 1,477,904.26 and 311,356.86 is: 467,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,275.45 : 1,477,904.26 = 311,356.86 : x
  2. Step 2: Convert to fraction form
    985,275.45/1,477,904.26 = 311,356.86/x
  3. Step 3: Cross multiply
    985,275.45x = 1,477,904.26 × 311,356.86
  4. Step 4: Simplify right side
    985,275.45x = 460,155,629,774.22
  5. Step 5: Solve for x
    x = 460,155,629,774.22/985,275.45
  6. Step 6: Final answer
    x = 467,032.47

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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.