Home / 679,762.98-1,019,048.31-258,758.82

Finding the Fourth Proportional to 679,762.98, 1,019,048.31 and 258,758.82

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Solution

The fourth proportional to 679,762.98, 1,019,048.31 and 258,758.82 is: 387,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,762.98 : 1,019,048.31 = 258,758.82 : x
  2. Step 2: Convert to fraction form
    679,762.98/1,019,048.31 = 258,758.82/x
  3. Step 3: Cross multiply
    679,762.98x = 1,019,048.31 × 258,758.82
  4. Step 4: Simplify right side
    679,762.98x = 263,687,738,218.59
  5. Step 5: Solve for x
    x = 263,687,738,218.59/679,762.98
  6. Step 6: Final answer
    x = 387,911.30

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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.