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Finding the Fourth Proportional to 654,536.21, 903,265.38 and 368,053.79

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Solution

The fourth proportional to 654,536.21, 903,265.38 and 368,053.79 is: 507,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,536.21 : 903,265.38 = 368,053.79 : x
  2. Step 2: Convert to fraction form
    654,536.21/903,265.38 = 368,053.79/x
  3. Step 3: Cross multiply
    654,536.21x = 903,265.38 × 368,053.79
  4. Step 4: Simplify right side
    654,536.21x = 332,450,241,968.46
  5. Step 5: Solve for x
    x = 332,450,241,968.46/654,536.21
  6. Step 6: Final answer
    x = 507,917.27

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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.