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Finding the Fourth Proportional to 690,222.67, 952,495.91 and 403,791.28

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Solution

The fourth proportional to 690,222.67, 952,495.91 and 403,791.28 is: 557,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,222.67 : 952,495.91 = 403,791.28 : x
  2. Step 2: Convert to fraction form
    690,222.67/952,495.91 = 403,791.28/x
  3. Step 3: Cross multiply
    690,222.67x = 952,495.91 × 403,791.28
  4. Step 4: Simplify right side
    690,222.67x = 384,609,539,807.69
  5. Step 5: Solve for x
    x = 384,609,539,807.69/690,222.67
  6. Step 6: Final answer
    x = 557,225.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.