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Finding the Fourth Proportional to 902,353, 1,245,128.52 and 539,644.36

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Solution

The fourth proportional to 902,353, 1,245,128.52 and 539,644.36 is: 744,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,353 : 1,245,128.52 = 539,644.36 : x
  2. Step 2: Convert to fraction form
    902,353/1,245,128.52 = 539,644.36/x
  3. Step 3: Cross multiply
    902,353x = 1,245,128.52 × 539,644.36
  4. Step 4: Simplify right side
    902,353x = 671,926,583,293.15
  5. Step 5: Solve for x
    x = 671,926,583,293.15/902,353
  6. Step 6: Final answer
    x = 744,638.28

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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.