Home / 455,190.28-682,731.58-286,211.56

Finding the Fourth Proportional to 455,190.28, 682,731.58 and 286,211.56

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Solution

The fourth proportional to 455,190.28, 682,731.58 and 286,211.56 is: 429,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,190.28 : 682,731.58 = 286,211.56 : x
  2. Step 2: Convert to fraction form
    455,190.28/682,731.58 = 286,211.56/x
  3. Step 3: Cross multiply
    455,190.28x = 682,731.58 × 286,211.56
  4. Step 4: Simplify right side
    455,190.28x = 195,405,670,573.07
  5. Step 5: Solve for x
    x = 195,405,670,573.07/455,190.28
  6. Step 6: Final answer
    x = 429,283.49

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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.