Home / 678,494.75-1,018,208.69-235,262.75

Finding the Fourth Proportional to 678,494.75, 1,018,208.69 and 235,262.75

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Solution

The fourth proportional to 678,494.75, 1,018,208.69 and 235,262.75 is: 353,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,494.75 : 1,018,208.69 = 235,262.75 : x
  2. Step 2: Convert to fraction form
    678,494.75/1,018,208.69 = 235,262.75/x
  3. Step 3: Cross multiply
    678,494.75x = 1,018,208.69 × 235,262.75
  4. Step 4: Simplify right side
    678,494.75x = 239,546,576,483.30
  5. Step 5: Solve for x
    x = 239,546,576,483.30/678,494.75
  6. Step 6: Final answer
    x = 353,055.90

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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.