Home / 382,677.06-528,079.86-212,907.54

Finding the Fourth Proportional to 382,677.06, 528,079.86 and 212,907.54

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Solution

The fourth proportional to 382,677.06, 528,079.86 and 212,907.54 is: 293,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,677.06 : 528,079.86 = 212,907.54 : x
  2. Step 2: Convert to fraction form
    382,677.06/528,079.86 = 212,907.54/x
  3. Step 3: Cross multiply
    382,677.06x = 528,079.86 × 212,907.54
  4. Step 4: Simplify right side
    382,677.06x = 112,432,183,916.14
  5. Step 5: Solve for x
    x = 112,432,183,916.14/382,677.06
  6. Step 6: Final answer
    x = 293,804.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.