Home / 877,046.42-1,315,569.67-212,198.42

Finding the Fourth Proportional to 877,046.42, 1,315,569.67 and 212,198.42

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Solution

The fourth proportional to 877,046.42, 1,315,569.67 and 212,198.42 is: 318,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,046.42 : 1,315,569.67 = 212,198.42 : x
  2. Step 2: Convert to fraction form
    877,046.42/1,315,569.67 = 212,198.42/x
  3. Step 3: Cross multiply
    877,046.42x = 1,315,569.67 × 212,198.42
  4. Step 4: Simplify right side
    877,046.42x = 279,161,801,925.89
  5. Step 5: Solve for x
    x = 279,161,801,925.89/877,046.42
  6. Step 6: Final answer
    x = 318,297.64

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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.