Home / 866,040.19-1,299,132.97-319,081.50

Finding the Fourth Proportional to 866,040.19, 1,299,132.97 and 319,081.50

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Solution

The fourth proportional to 866,040.19, 1,299,132.97 and 319,081.50 is: 478,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,040.19 : 1,299,132.97 = 319,081.50 : x
  2. Step 2: Convert to fraction form
    866,040.19/1,299,132.97 = 319,081.50/x
  3. Step 3: Cross multiply
    866,040.19x = 1,299,132.97 × 319,081.50
  4. Step 4: Simplify right side
    866,040.19x = 414,529,295,969.35
  5. Step 5: Solve for x
    x = 414,529,295,969.35/866,040.19
  6. Step 6: Final answer
    x = 478,649.03

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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.