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Finding the Fourth Proportional to 472,749.33, 652,391.78 and 257,887.52

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Solution

The fourth proportional to 472,749.33, 652,391.78 and 257,887.52 is: 355,883.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,749.33 : 652,391.78 = 257,887.52 : x
  2. Step 2: Convert to fraction form
    472,749.33/652,391.78 = 257,887.52/x
  3. Step 3: Cross multiply
    472,749.33x = 652,391.78 × 257,887.52
  4. Step 4: Simplify right side
    472,749.33x = 168,243,698,212.59
  5. Step 5: Solve for x
    x = 168,243,698,212.59/472,749.33
  6. Step 6: Final answer
    x = 355,883.53

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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.