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Finding the Fourth Proportional to 656,858.70, 985,288.05 and 302,564.70

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Solution

The fourth proportional to 656,858.70, 985,288.05 and 302,564.70 is: 453,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,858.70 : 985,288.05 = 302,564.70 : x
  2. Step 2: Convert to fraction form
    656,858.70/985,288.05 = 302,564.70/x
  3. Step 3: Cross multiply
    656,858.70x = 985,288.05 × 302,564.70
  4. Step 4: Simplify right side
    656,858.70x = 298,113,383,261.84
  5. Step 5: Solve for x
    x = 298,113,383,261.84/656,858.70
  6. Step 6: Final answer
    x = 453,847.05

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Similar ratio
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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.