Finding the Fourth Proportional to 1,212,487.99, 1,673,194.93 and 668,646.70
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Solution
The fourth proportional to 1,212,487.99, 1,673,194.93 and 668,646.70 is: 922,711.22
Step by Step Solution
- Step 1: Write the proportion equation
1,212,487.99 : 1,673,194.93 = 668,646.70 : x - Step 2: Convert to fraction form
1,212,487.99/1,673,194.93 = 668,646.70/x - Step 3: Cross multiply
1,212,487.99x = 1,673,194.93 × 668,646.70 - Step 4: Simplify right side
1,212,487.99x = 1,118,776,268,401.23 - Step 5: Solve for x
x = 1,118,776,268,401.23/1,212,487.99 - Step 6: Final answer
x = 922,711.22
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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.