Home / 511,916.39-767,546.52-212,603.57

Finding the Fourth Proportional to 511,916.39, 767,546.52 and 212,603.57

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Solution

The fourth proportional to 511,916.39, 767,546.52 and 212,603.57 is: 318,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,916.39 : 767,546.52 = 212,603.57 : x
  2. Step 2: Convert to fraction form
    511,916.39/767,546.52 = 212,603.57/x
  3. Step 3: Cross multiply
    511,916.39x = 767,546.52 × 212,603.57
  4. Step 4: Simplify right side
    511,916.39x = 163,183,128,536.38
  5. Step 5: Solve for x
    x = 163,183,128,536.38/511,916.39
  6. Step 6: Final answer
    x = 318,769.10

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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.