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Finding the Fourth Proportional to 636,897.03, 878,938.92 and 365,017.03

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Solution

The fourth proportional to 636,897.03, 878,938.92 and 365,017.03 is: 503,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,897.03 : 878,938.92 = 365,017.03 : x
  2. Step 2: Convert to fraction form
    636,897.03/878,938.92 = 365,017.03/x
  3. Step 3: Cross multiply
    636,897.03x = 878,938.92 × 365,017.03
  4. Step 4: Simplify right side
    636,897.03x = 320,827,677,903.10
  5. Step 5: Solve for x
    x = 320,827,677,903.10/636,897.03
  6. Step 6: Final answer
    x = 503,735.56

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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.