Home / 780,623.16-1,171,012.68-212,013.24

Finding the Fourth Proportional to 780,623.16, 1,171,012.68 and 212,013.24

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Solution

The fourth proportional to 780,623.16, 1,171,012.68 and 212,013.24 is: 318,041.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,623.16 : 1,171,012.68 = 212,013.24 : x
  2. Step 2: Convert to fraction form
    780,623.16/1,171,012.68 = 212,013.24/x
  3. Step 3: Cross multiply
    780,623.16x = 1,171,012.68 × 212,013.24
  4. Step 4: Simplify right side
    780,623.16x = 248,270,192,367.88
  5. Step 5: Solve for x
    x = 248,270,192,367.88/780,623.16
  6. Step 6: Final answer
    x = 318,041.03

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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.