Home / 874,912.80-1,312,369.20-210,064.80

Finding the Fourth Proportional to 874,912.80, 1,312,369.20 and 210,064.80

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Solution

The fourth proportional to 874,912.80, 1,312,369.20 and 210,064.80 is: 315,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,912.80 : 1,312,369.20 = 210,064.80 : x
  2. Step 2: Convert to fraction form
    874,912.80/1,312,369.20 = 210,064.80/x
  3. Step 3: Cross multiply
    874,912.80x = 1,312,369.20 × 210,064.80
  4. Step 4: Simplify right side
    874,912.80x = 275,682,573,524.16
  5. Step 5: Solve for x
    x = 275,682,573,524.16/874,912.80
  6. Step 6: Final answer
    x = 315,097.20

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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.