Home / 409,749.90-565,413.54-228,444.78

Finding the Fourth Proportional to 409,749.90, 565,413.54 and 228,444.78

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Solution

The fourth proportional to 409,749.90, 565,413.54 and 228,444.78 is: 315,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,749.90 : 565,413.54 = 228,444.78 : x
  2. Step 2: Convert to fraction form
    409,749.90/565,413.54 = 228,444.78/x
  3. Step 3: Cross multiply
    409,749.90x = 565,413.54 × 228,444.78
  4. Step 4: Simplify right side
    409,749.90x = 129,165,771,754.32
  5. Step 5: Solve for x
    x = 129,165,771,754.32/409,749.90
  6. Step 6: Final answer
    x = 315,230.76

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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.