Home / 874,900.80-1,312,351.20-210,052.80

Finding the Fourth Proportional to 874,900.80, 1,312,351.20 and 210,052.80

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Solution

The fourth proportional to 874,900.80, 1,312,351.20 and 210,052.80 is: 315,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,900.80 : 1,312,351.20 = 210,052.80 : x
  2. Step 2: Convert to fraction form
    874,900.80/1,312,351.20 = 210,052.80/x
  3. Step 3: Cross multiply
    874,900.80x = 1,312,351.20 × 210,052.80
  4. Step 4: Simplify right side
    874,900.80x = 275,663,044,143.36
  5. Step 5: Solve for x
    x = 275,663,044,143.36/874,900.80
  6. Step 6: Final answer
    x = 315,079.20

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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.