Home / 816,750.82-1,127,143.52-449,243.50

Finding the Fourth Proportional to 816,750.82, 1,127,143.52 and 449,243.50

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Solution

The fourth proportional to 816,750.82, 1,127,143.52 and 449,243.50 is: 619,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,750.82 : 1,127,143.52 = 449,243.50 : x
  2. Step 2: Convert to fraction form
    816,750.82/1,127,143.52 = 449,243.50/x
  3. Step 3: Cross multiply
    816,750.82x = 1,127,143.52 × 449,243.50
  4. Step 4: Simplify right side
    816,750.82x = 506,361,899,927.12
  5. Step 5: Solve for x
    x = 506,361,899,927.12/816,750.82
  6. Step 6: Final answer
    x = 619,971.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.