Home / 841,070.94-1,261,586.97-280,110.30

Finding the Fourth Proportional to 841,070.94, 1,261,586.97 and 280,110.30

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Solution

The fourth proportional to 841,070.94, 1,261,586.97 and 280,110.30 is: 420,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,070.94 : 1,261,586.97 = 280,110.30 : x
  2. Step 2: Convert to fraction form
    841,070.94/1,261,586.97 = 280,110.30/x
  3. Step 3: Cross multiply
    841,070.94x = 1,261,586.97 × 280,110.30
  4. Step 4: Simplify right side
    841,070.94x = 353,383,504,642.79
  5. Step 5: Solve for x
    x = 353,383,504,642.79/841,070.94
  6. Step 6: Final answer
    x = 420,158.98

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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.