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Finding the Fourth Proportional to 578,648.69, 798,442.16 and 363,636.51

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Solution

The fourth proportional to 578,648.69, 798,442.16 and 363,636.51 is: 501,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,648.69 : 798,442.16 = 363,636.51 : x
  2. Step 2: Convert to fraction form
    578,648.69/798,442.16 = 363,636.51/x
  3. Step 3: Cross multiply
    578,648.69x = 798,442.16 × 363,636.51
  4. Step 4: Simplify right side
    578,648.69x = 290,342,724,469.23
  5. Step 5: Solve for x
    x = 290,342,724,469.23/578,648.69
  6. Step 6: Final answer
    x = 501,759.93

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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.