Finding the Fourth Proportional to 763,122.11, 1,053,055.80 and 423,563.63
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Solution
The fourth proportional to 763,122.11, 1,053,055.80 and 423,563.63 is: 584,488.55
Step by Step Solution
- Step 1: Write the proportion equation
763,122.11 : 1,053,055.80 = 423,563.63 : x - Step 2: Convert to fraction form
763,122.11/1,053,055.80 = 423,563.63/x - Step 3: Cross multiply
763,122.11x = 1,053,055.80 × 423,563.63 - Step 4: Simplify right side
763,122.11x = 446,036,131,975.28 - Step 5: Solve for x
x = 446,036,131,975.28/763,122.11 - Step 6: Final answer
x = 584,488.55
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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.