Home / 864,021.90-1,293,764.85-609,930.30

Finding the Fourth Proportional to 864,021.90, 1,293,764.85 and 609,930.30

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Solution

The fourth proportional to 864,021.90, 1,293,764.85 and 609,930.30 is: 913,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,021.90 : 1,293,764.85 = 609,930.30 : x
  2. Step 2: Convert to fraction form
    864,021.90/1,293,764.85 = 609,930.30/x
  3. Step 3: Cross multiply
    864,021.90x = 1,293,764.85 × 609,930.30
  4. Step 4: Simplify right side
    864,021.90x = 789,106,383,089.96
  5. Step 5: Solve for x
    x = 789,106,383,089.96/864,021.90
  6. Step 6: Final answer
    x = 913,294.42

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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.