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Finding the Fourth Proportional to 647,749.05, 893,604.60 and 375,659.25

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Solution

The fourth proportional to 647,749.05, 893,604.60 and 375,659.25 is: 518,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,749.05 : 893,604.60 = 375,659.25 : x
  2. Step 2: Convert to fraction form
    647,749.05/893,604.60 = 375,659.25/x
  3. Step 3: Cross multiply
    647,749.05x = 893,604.60 × 375,659.25
  4. Step 4: Simplify right side
    647,749.05x = 335,690,833,832.55
  5. Step 5: Solve for x
    x = 335,690,833,832.55/647,749.05
  6. Step 6: Final answer
    x = 518,242.11

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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.