Home / 862,820.46-1,190,696.22-500,458.86

Finding the Fourth Proportional to 862,820.46, 1,190,696.22 and 500,458.86

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Solution

The fourth proportional to 862,820.46, 1,190,696.22 and 500,458.86 is: 690,635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,820.46 : 1,190,696.22 = 500,458.86 : x
  2. Step 2: Convert to fraction form
    862,820.46/1,190,696.22 = 500,458.86/x
  3. Step 3: Cross multiply
    862,820.46x = 1,190,696.22 × 500,458.86
  4. Step 4: Simplify right side
    862,820.46x = 595,894,472,867.51
  5. Step 5: Solve for x
    x = 595,894,472,867.51/862,820.46
  6. Step 6: Final answer
    x = 690,635.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.