Home / 687,014.10-1,030,323.87-231,555.42

Finding the Fourth Proportional to 687,014.10, 1,030,323.87 and 231,555.42

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Solution

The fourth proportional to 687,014.10, 1,030,323.87 and 231,555.42 is: 347,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,014.10 : 1,030,323.87 = 231,555.42 : x
  2. Step 2: Convert to fraction form
    687,014.10/1,030,323.87 = 231,555.42/x
  3. Step 3: Cross multiply
    687,014.10x = 1,030,323.87 × 231,555.42
  4. Step 4: Simplify right side
    687,014.10x = 238,577,076,453.88
  5. Step 5: Solve for x
    x = 238,577,076,453.88/687,014.10
  6. Step 6: Final answer
    x = 347,266.64

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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.