Home / 993,810.40-1,489,986.60-394,475.20

Finding the Fourth Proportional to 993,810.40, 1,489,986.60 and 394,475.20

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Solution

The fourth proportional to 993,810.40, 1,489,986.60 and 394,475.20 is: 591,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,810.40 : 1,489,986.60 = 394,475.20 : x
  2. Step 2: Convert to fraction form
    993,810.40/1,489,986.60 = 394,475.20/x
  3. Step 3: Cross multiply
    993,810.40x = 1,489,986.60 × 394,475.20
  4. Step 4: Simplify right side
    993,810.40x = 587,762,762,032.32
  5. Step 5: Solve for x
    x = 587,762,762,032.32/993,810.40
  6. Step 6: Final answer
    x = 591,423.44

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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.