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Finding the Fourth Proportional to 571,806, 857,536.20 and 172,413.36

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Solution

The fourth proportional to 571,806, 857,536.20 and 172,413.36 is: 258,567.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,806 : 857,536.20 = 172,413.36 : x
  2. Step 2: Convert to fraction form
    571,806/857,536.20 = 172,413.36/x
  3. Step 3: Cross multiply
    571,806x = 857,536.20 × 172,413.36
  4. Step 4: Simplify right side
    571,806x = 147,850,697,563.63
  5. Step 5: Solve for x
    x = 147,850,697,563.63/571,806
  6. Step 6: Final answer
    x = 258,567.94

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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.