Finding the Fourth Proportional to 1,191,436.80, 1,788,041.16 and 481,470.99
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Solution
The fourth proportional to 1,191,436.80, 1,788,041.16 and 481,470.99 is: 722,564.51
Step by Step Solution
- Step 1: Write the proportion equation
1,191,436.80 : 1,788,041.16 = 481,470.99 : x - Step 2: Convert to fraction form
1,191,436.80/1,788,041.16 = 481,470.99/x - Step 3: Cross multiply
1,191,436.80x = 1,788,041.16 × 481,470.99 - Step 4: Simplify right side
1,191,436.80x = 860,889,947,465.95 - Step 5: Solve for x
x = 860,889,947,465.95/1,191,436.80 - Step 6: Final answer
x = 722,564.51
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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.