Finding the Fourth Proportional to 1,190,283.99, 1,643,094.55 and 803,623.20
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Solution
The fourth proportional to 1,190,283.99, 1,643,094.55 and 803,623.20 is: 1,109,339.37
Step by Step Solution
- Step 1: Write the proportion equation
1,190,283.99 : 1,643,094.55 = 803,623.20 : x - Step 2: Convert to fraction form
1,190,283.99/1,643,094.55 = 803,623.20/x - Step 3: Cross multiply
1,190,283.99x = 1,643,094.55 × 803,623.20 - Step 4: Simplify right side
1,190,283.99x = 1,320,428,891,958.09 - Step 5: Solve for x
x = 1,320,428,891,958.09/1,190,283.99 - Step 6: Final answer
x = 1,109,339.37
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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.