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Finding the Fourth Proportional to 654,853.36, 903,689.40 and 368,375.44

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Solution

The fourth proportional to 654,853.36, 903,689.40 and 368,375.44 is: 508,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,853.36 : 903,689.40 = 368,375.44 : x
  2. Step 2: Convert to fraction form
    654,853.36/903,689.40 = 368,375.44/x
  3. Step 3: Cross multiply
    654,853.36x = 903,689.40 × 368,375.44
  4. Step 4: Simplify right side
    654,853.36x = 332,896,980,348.34
  5. Step 5: Solve for x
    x = 332,896,980,348.34/654,853.36
  6. Step 6: Final answer
    x = 508,353.47

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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.