Home / 920,942.45-1,381,600.52-289,709.45

Finding the Fourth Proportional to 920,942.45, 1,381,600.52 and 289,709.45

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Solution

The fourth proportional to 920,942.45, 1,381,600.52 and 289,709.45 is: 434,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,942.45 : 1,381,600.52 = 289,709.45 : x
  2. Step 2: Convert to fraction form
    920,942.45/1,381,600.52 = 289,709.45/x
  3. Step 3: Cross multiply
    920,942.45x = 1,381,600.52 × 289,709.45
  4. Step 4: Simplify right side
    920,942.45x = 400,262,726,768.91
  5. Step 5: Solve for x
    x = 400,262,726,768.91/920,942.45
  6. Step 6: Final answer
    x = 434,622.95

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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.