Home / 1,223.89-1,836.07-530.43

Finding the Fourth Proportional to 1,223.89, 1,836.07 and 530.43

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Solution

The fourth proportional to 1,223.89, 1,836.07 and 530.43 is: 795.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.89 : 1,836.07 = 530.43 : x
  2. Step 2: Convert to fraction form
    1,223.89/1,836.07 = 530.43/x
  3. Step 3: Cross multiply
    1,223.89x = 1,836.07 × 530.43
  4. Step 4: Simplify right side
    1,223.89x = 973,908.73
  5. Step 5: Solve for x
    x = 973,908.73/1,223.89
  6. Step 6: Final answer
    x = 795.75

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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.