Home / 789,878.70-1,184,940.97-257,275.76

Finding the Fourth Proportional to 789,878.70, 1,184,940.97 and 257,275.76

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Solution

The fourth proportional to 789,878.70, 1,184,940.97 and 257,275.76 is: 385,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,878.70 : 1,184,940.97 = 257,275.76 : x
  2. Step 2: Convert to fraction form
    789,878.70/1,184,940.97 = 257,275.76/x
  3. Step 3: Cross multiply
    789,878.70x = 1,184,940.97 × 257,275.76
  4. Step 4: Simplify right side
    789,878.70x = 304,856,582,043.99
  5. Step 5: Solve for x
    x = 304,856,582,043.99/789,878.70
  6. Step 6: Final answer
    x = 385,953.67

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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.