Home / 403,359,240.90-605,038,861.35-394,401,288.90

Finding the Fourth Proportional to 403,359,240.90, 605,038,861.35 and 394,401,288.90

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Solution

The fourth proportional to 403,359,240.90, 605,038,861.35 and 394,401,288.90 is: 591,601,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,359,240.90 : 605,038,861.35 = 394,401,288.90 : x
  2. Step 2: Convert to fraction form
    403,359,240.90/605,038,861.35 = 394,401,288.90/x
  3. Step 3: Cross multiply
    403,359,240.90x = 605,038,861.35 × 394,401,288.90
  4. Step 4: Simplify right side
    403,359,240.90x = 238,628,106,751,028,384
  5. Step 5: Solve for x
    x = 238,628,106,751,028,384/403,359,240.90
  6. Step 6: Final answer
    x = 591,601,933.35

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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.