Home / 993,325.70-1,489,988.55-394,429.70

Finding the Fourth Proportional to 993,325.70, 1,489,988.55 and 394,429.70

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Solution

The fourth proportional to 993,325.70, 1,489,988.55 and 394,429.70 is: 591,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,325.70 : 1,489,988.55 = 394,429.70 : x
  2. Step 2: Convert to fraction form
    993,325.70/1,489,988.55 = 394,429.70/x
  3. Step 3: Cross multiply
    993,325.70x = 1,489,988.55 × 394,429.70
  4. Step 4: Simplify right side
    993,325.70x = 587,695,736,779.94
  5. Step 5: Solve for x
    x = 587,695,736,779.94/993,325.70
  6. Step 6: Final answer
    x = 591,644.55

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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.