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Finding the Fourth Proportional to 533,219.96, 735,852.30 and 318,378.80

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Solution

The fourth proportional to 533,219.96, 735,852.30 and 318,378.80 is: 439,367.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,219.96 : 735,852.30 = 318,378.80 : x
  2. Step 2: Convert to fraction form
    533,219.96/735,852.30 = 318,378.80/x
  3. Step 3: Cross multiply
    533,219.96x = 735,852.30 × 318,378.80
  4. Step 4: Simplify right side
    533,219.96x = 234,279,772,896.95
  5. Step 5: Solve for x
    x = 234,279,772,896.95/533,219.96
  6. Step 6: Final answer
    x = 439,367.97

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1.5x scale

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.