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Finding the Fourth Proportional to 460,804.52, 691,206.24 and 128,380.52

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Solution

The fourth proportional to 460,804.52, 691,206.24 and 128,380.52 is: 192,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,804.52 : 691,206.24 = 128,380.52 : x
  2. Step 2: Convert to fraction form
    460,804.52/691,206.24 = 128,380.52/x
  3. Step 3: Cross multiply
    460,804.52x = 691,206.24 × 128,380.52
  4. Step 4: Simplify right side
    460,804.52x = 88,737,416,518.44
  5. Step 5: Solve for x
    x = 88,737,416,518.44/460,804.52
  6. Step 6: Final answer
    x = 192,570.63

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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.