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Finding the Fourth Proportional to 654,770.78, 903,574.60 and 368,291.06

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Solution

The fourth proportional to 654,770.78, 903,574.60 and 368,291.06 is: 508,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,770.78 : 903,574.60 = 368,291.06 : x
  2. Step 2: Convert to fraction form
    654,770.78/903,574.60 = 368,291.06/x
  3. Step 3: Cross multiply
    654,770.78x = 903,574.60 × 368,291.06
  4. Step 4: Simplify right side
    654,770.78x = 332,778,441,784.48
  5. Step 5: Solve for x
    x = 332,778,441,784.48/654,770.78
  6. Step 6: Final answer
    x = 508,236.55

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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.