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Finding the Fourth Proportional to 657,404.40, 986,495.40 and 236,625.60

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Solution

The fourth proportional to 657,404.40, 986,495.40 and 236,625.60 is: 355,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,404.40 : 986,495.40 = 236,625.60 : x
  2. Step 2: Convert to fraction form
    657,404.40/986,495.40 = 236,625.60/x
  3. Step 3: Cross multiply
    657,404.40x = 986,495.40 × 236,625.60
  4. Step 4: Simplify right side
    657,404.40x = 233,430,065,922.24
  5. Step 5: Solve for x
    x = 233,430,065,922.24/657,404.40
  6. Step 6: Final answer
    x = 355,078.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.