Home / 874,759.40-1,311,942.29-313,793.90

Finding the Fourth Proportional to 874,759.40, 1,311,942.29 and 313,793.90

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Solution

The fourth proportional to 874,759.40, 1,311,942.29 and 313,793.90 is: 470,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,759.40 : 1,311,942.29 = 313,793.90 : x
  2. Step 2: Convert to fraction form
    874,759.40/1,311,942.29 = 313,793.90/x
  3. Step 3: Cross multiply
    874,759.40x = 1,311,942.29 × 313,793.90
  4. Step 4: Simplify right side
    874,759.40x = 411,679,484,545.13
  5. Step 5: Solve for x
    x = 411,679,484,545.13/874,759.40
  6. Step 6: Final answer
    x = 470,620.25

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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.