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Finding the Fourth Proportional to 526,371.72, 789,907.97 and 286,546.15

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Solution

The fourth proportional to 526,371.72, 789,907.97 and 286,546.15 is: 430,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,371.72 : 789,907.97 = 286,546.15 : x
  2. Step 2: Convert to fraction form
    526,371.72/789,907.97 = 286,546.15/x
  3. Step 3: Cross multiply
    526,371.72x = 789,907.97 × 286,546.15
  4. Step 4: Simplify right side
    526,371.72x = 226,345,086,225.09
  5. Step 5: Solve for x
    x = 226,345,086,225.09/526,371.72
  6. Step 6: Final answer
    x = 430,009.97

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1.5x scale

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.