Home / 791,214.31-1,091,874.43-428,647.38

Finding the Fourth Proportional to 791,214.31, 1,091,874.43 and 428,647.38

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Solution

The fourth proportional to 791,214.31, 1,091,874.43 and 428,647.38 is: 591,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,214.31 : 1,091,874.43 = 428,647.38 : x
  2. Step 2: Convert to fraction form
    791,214.31/1,091,874.43 = 428,647.38/x
  3. Step 3: Cross multiply
    791,214.31x = 1,091,874.43 × 428,647.38
  4. Step 4: Simplify right side
    791,214.31x = 468,029,110,149.77
  5. Step 5: Solve for x
    x = 468,029,110,149.77/791,214.31
  6. Step 6: Final answer
    x = 591,532.67

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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.