Home / 744,900.77-1,117,361.33-212,421.71

Finding the Fourth Proportional to 744,900.77, 1,117,361.33 and 212,421.71

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Solution

The fourth proportional to 744,900.77, 1,117,361.33 and 212,421.71 is: 318,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,900.77 : 1,117,361.33 = 212,421.71 : x
  2. Step 2: Convert to fraction form
    744,900.77/1,117,361.33 = 212,421.71/x
  3. Step 3: Cross multiply
    744,900.77x = 1,117,361.33 × 212,421.71
  4. Step 4: Simplify right side
    744,900.77x = 237,351,801,844.07
  5. Step 5: Solve for x
    x = 237,351,801,844.07/744,900.77
  6. Step 6: Final answer
    x = 318,635.46

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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.