Home / 554,028.46-764,513.34-312,370.46

Finding the Fourth Proportional to 554,028.46, 764,513.34 and 312,370.46

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Solution

The fourth proportional to 554,028.46, 764,513.34 and 312,370.46 is: 431,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,028.46 : 764,513.34 = 312,370.46 : x
  2. Step 2: Convert to fraction form
    554,028.46/764,513.34 = 312,370.46/x
  3. Step 3: Cross multiply
    554,028.46x = 764,513.34 × 312,370.46
  4. Step 4: Simplify right side
    554,028.46x = 238,811,383,691.94
  5. Step 5: Solve for x
    x = 238,811,383,691.94/554,028.46
  6. Step 6: Final answer
    x = 431,045.34

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Double scale
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Similar ratio
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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.