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Finding the Fourth Proportional to 654,771.15, 903,575.12 and 368,291.43

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Solution

The fourth proportional to 654,771.15, 903,575.12 and 368,291.43 is: 508,237.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,771.15 : 903,575.12 = 368,291.43 : x
  2. Step 2: Convert to fraction form
    654,771.15/903,575.12 = 368,291.43/x
  3. Step 3: Cross multiply
    654,771.15x = 903,575.12 × 368,291.43
  4. Step 4: Simplify right side
    654,771.15x = 332,778,971,215.76
  5. Step 5: Solve for x
    x = 332,778,971,215.76/654,771.15
  6. Step 6: Final answer
    x = 508,237.07

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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.