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Finding the Fourth Proportional to 474,762.57, 655,114.33 and 378,212.29

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Solution

The fourth proportional to 474,762.57, 655,114.33 and 378,212.29 is: 521,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,762.57 : 655,114.33 = 378,212.29 : x
  2. Step 2: Convert to fraction form
    474,762.57/655,114.33 = 378,212.29/x
  3. Step 3: Cross multiply
    474,762.57x = 655,114.33 × 378,212.29
  4. Step 4: Simplify right side
    474,762.57x = 247,772,289,796.10
  5. Step 5: Solve for x
    x = 247,772,289,796.10/474,762.57
  6. Step 6: Final answer
    x = 521,886.74

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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.