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Finding the Fourth Proportional to 610,512.45, 915,804.48 and 205,670.85

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Solution

The fourth proportional to 610,512.45, 915,804.48 and 205,670.85 is: 308,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,512.45 : 915,804.48 = 205,670.85 : x
  2. Step 2: Convert to fraction form
    610,512.45/915,804.48 = 205,670.85/x
  3. Step 3: Cross multiply
    610,512.45x = 915,804.48 × 205,670.85
  4. Step 4: Simplify right side
    610,512.45x = 188,354,285,835.41
  5. Step 5: Solve for x
    x = 188,354,285,835.41/610,512.45
  6. Step 6: Final answer
    x = 308,518.34

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1.5x scale

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.