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Finding the Fourth Proportional to 654,863.58, 903,708.32 and 368,385.75

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Solution

The fourth proportional to 654,863.58, 903,708.32 and 368,385.75 is: 508,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,863.58 : 903,708.32 = 368,385.75 : x
  2. Step 2: Convert to fraction form
    654,863.58/903,708.32 = 368,385.75/x
  3. Step 3: Cross multiply
    654,863.58x = 903,708.32 × 368,385.75
  4. Step 4: Simplify right side
    654,863.58x = 332,913,265,402.51
  5. Step 5: Solve for x
    x = 332,913,265,402.51/654,863.58
  6. Step 6: Final answer
    x = 508,370.41

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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.