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Finding the Fourth Proportional to 575,440.50, 863,285.37 and 220,454.55

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Solution

The fourth proportional to 575,440.50, 863,285.37 and 220,454.55 is: 330,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,440.50 : 863,285.37 = 220,454.55 : x
  2. Step 2: Convert to fraction form
    575,440.50/863,285.37 = 220,454.55/x
  3. Step 3: Cross multiply
    575,440.50x = 863,285.37 × 220,454.55
  4. Step 4: Simplify right side
    575,440.50x = 190,315,187,764.93
  5. Step 5: Solve for x
    x = 190,315,187,764.93/575,440.50
  6. Step 6: Final answer
    x = 330,729.57

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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.