Finding the Fourth Proportional to 1,319,481.04, 1,821,101.58 and 905,677.74
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Solution
The fourth proportional to 1,319,481.04, 1,821,101.58 and 905,677.74 is: 1,249,984.74
Step by Step Solution
- Step 1: Write the proportion equation
1,319,481.04 : 1,821,101.58 = 905,677.74 : x - Step 2: Convert to fraction form
1,319,481.04/1,821,101.58 = 905,677.74/x - Step 3: Cross multiply
1,319,481.04x = 1,821,101.58 × 905,677.74 - Step 4: Simplify right side
1,319,481.04x = 1,649,331,163,284.83 - Step 5: Solve for x
x = 1,649,331,163,284.83/1,319,481.04 - Step 6: Final answer
x = 1,249,984.74
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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.