Home / 644,054.12-966,245.22-289,202.36

Finding the Fourth Proportional to 644,054.12, 966,245.22 and 289,202.36

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Solution

The fourth proportional to 644,054.12, 966,245.22 and 289,202.36 is: 433,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,054.12 : 966,245.22 = 289,202.36 : x
  2. Step 2: Convert to fraction form
    644,054.12/966,245.22 = 289,202.36/x
  3. Step 3: Cross multiply
    644,054.12x = 966,245.22 × 289,202.36
  4. Step 4: Simplify right side
    644,054.12x = 279,440,397,962.72
  5. Step 5: Solve for x
    x = 279,440,397,962.72/644,054.12
  6. Step 6: Final answer
    x = 433,877.20

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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.