Home / 490,021.48-735,557.10-385,570.36

Finding the Fourth Proportional to 490,021.48, 735,557.10 and 385,570.36

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Solution

The fourth proportional to 490,021.48, 735,557.10 and 385,570.36 is: 578,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,021.48 : 735,557.10 = 385,570.36 : x
  2. Step 2: Convert to fraction form
    490,021.48/735,557.10 = 385,570.36/x
  3. Step 3: Cross multiply
    490,021.48x = 735,557.10 × 385,570.36
  4. Step 4: Simplify right side
    490,021.48x = 283,609,015,847.56
  5. Step 5: Solve for x
    x = 283,609,015,847.56/490,021.48
  6. Step 6: Final answer
    x = 578,768.54

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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.