Finding the Fourth Proportional to 1,224,661.05, 1,690,075.62 and 673,418.75
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Solution
The fourth proportional to 1,224,661.05, 1,690,075.62 and 673,418.75 is: 929,341.72
Step by Step Solution
- Step 1: Write the proportion equation
1,224,661.05 : 1,690,075.62 = 673,418.75 : x - Step 2: Convert to fraction form
1,224,661.05/1,690,075.62 = 673,418.75/x - Step 3: Cross multiply
1,224,661.05x = 1,690,075.62 × 673,418.75 - Step 4: Simplify right side
1,224,661.05x = 1,138,128,602,975.50 - Step 5: Solve for x
x = 1,138,128,602,975.50/1,224,661.05 - Step 6: Final answer
x = 929,341.72
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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.