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Finding the Fourth Proportional to 628,286.76, 942,585.66 and 295,785

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Solution

The fourth proportional to 628,286.76, 942,585.66 and 295,785 is: 443,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,286.76 : 942,585.66 = 295,785 : x
  2. Step 2: Convert to fraction form
    628,286.76/942,585.66 = 295,785/x
  3. Step 3: Cross multiply
    628,286.76x = 942,585.66 × 295,785
  4. Step 4: Simplify right side
    628,286.76x = 278,802,699,443.10
  5. Step 5: Solve for x
    x = 278,802,699,443.10/628,286.76
  6. Step 6: Final answer
    x = 443,750.72

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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.