Home / 526,512.20-789,768.30-313,935.80

Finding the Fourth Proportional to 526,512.20, 789,768.30 and 313,935.80

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Solution

The fourth proportional to 526,512.20, 789,768.30 and 313,935.80 is: 470,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,512.20 : 789,768.30 = 313,935.80 : x
  2. Step 2: Convert to fraction form
    526,512.20/789,768.30 = 313,935.80/x
  3. Step 3: Cross multiply
    526,512.20x = 789,768.30 × 313,935.80
  4. Step 4: Simplify right side
    526,512.20x = 247,936,543,075.14
  5. Step 5: Solve for x
    x = 247,936,543,075.14/526,512.20
  6. Step 6: Final answer
    x = 470,903.70

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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.