Home / 1,330,369.65-1,995,846.09-431,658.45

Finding the Fourth Proportional to 1,330,369.65, 1,995,846.09 and 431,658.45

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Solution

The fourth proportional to 1,330,369.65, 1,995,846.09 and 431,658.45 is: 647,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,369.65 : 1,995,846.09 = 431,658.45 : x
  2. Step 2: Convert to fraction form
    1,330,369.65/1,995,846.09 = 431,658.45/x
  3. Step 3: Cross multiply
    1,330,369.65x = 1,995,846.09 × 431,658.45
  4. Step 4: Simplify right side
    1,330,369.65x = 861,523,829,647.96
  5. Step 5: Solve for x
    x = 861,523,829,647.96/1,330,369.65
  6. Step 6: Final answer
    x = 647,582.29

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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.