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Finding the Fourth Proportional to 858,793.95, 1,288,190.93 and 858,793.95

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Solution

The fourth proportional to 858,793.95, 1,288,190.93 and 858,793.95 is: 1,288,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,793.95 : 1,288,190.93 = 858,793.95 : x
  2. Step 2: Convert to fraction form
    858,793.95/1,288,190.93 = 858,793.95/x
  3. Step 3: Cross multiply
    858,793.95x = 1,288,190.93 × 858,793.95
  4. Step 4: Simplify right side
    858,793.95x = 1,106,290,572,834.90
  5. Step 5: Solve for x
    x = 1,106,290,572,834.90/858,793.95
  6. Step 6: Final answer
    x = 1,288,190.93

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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.