Home / 859,619.52-1,185,971.76-491,828

Finding the Fourth Proportional to 859,619.52, 1,185,971.76 and 491,828

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Solution

The fourth proportional to 859,619.52, 1,185,971.76 and 491,828 is: 678,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,619.52 : 1,185,971.76 = 491,828 : x
  2. Step 2: Convert to fraction form
    859,619.52/1,185,971.76 = 491,828/x
  3. Step 3: Cross multiply
    859,619.52x = 1,185,971.76 × 491,828
  4. Step 4: Simplify right side
    859,619.52x = 583,294,118,777.28
  5. Step 5: Solve for x
    x = 583,294,118,777.28/859,619.52
  6. Step 6: Final answer
    x = 678,549.18

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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.