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Finding the Fourth Proportional to 507.19, 699.29 and 413.84

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Solution

The fourth proportional to 507.19, 699.29 and 413.84 is: 570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.19 : 699.29 = 413.84 : x
  2. Step 2: Convert to fraction form
    507.19/699.29 = 413.84/x
  3. Step 3: Cross multiply
    507.19x = 699.29 × 413.84
  4. Step 4: Simplify right side
    507.19x = 289,392.10
  5. Step 5: Solve for x
    x = 289,392.10/507.19
  6. Step 6: Final answer
    x = 570.58

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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.