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Finding the Fourth Proportional to 554,999.40, 832,456.26 and 155,619

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Solution

The fourth proportional to 554,999.40, 832,456.26 and 155,619 is: 233,416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,999.40 : 832,456.26 = 155,619 : x
  2. Step 2: Convert to fraction form
    554,999.40/832,456.26 = 155,619/x
  3. Step 3: Cross multiply
    554,999.40x = 832,456.26 × 155,619
  4. Step 4: Simplify right side
    554,999.40x = 129,546,010,724.94
  5. Step 5: Solve for x
    x = 129,546,010,724.94/554,999.40
  6. Step 6: Final answer
    x = 233,416.49

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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.