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Finding the Fourth Proportional to 654,508.92, 903,204.36 and 368,021.64

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Solution

The fourth proportional to 654,508.92, 903,204.36 and 368,021.64 is: 507,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,508.92 : 903,204.36 = 368,021.64 : x
  2. Step 2: Convert to fraction form
    654,508.92/903,204.36 = 368,021.64/x
  3. Step 3: Cross multiply
    654,508.92x = 903,204.36 × 368,021.64
  4. Step 4: Simplify right side
    654,508.92x = 332,398,749,822.35
  5. Step 5: Solve for x
    x = 332,398,749,822.35/654,508.92
  6. Step 6: Final answer
    x = 507,859.77

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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.