Finding the Fourth Proportional to 1,283,448.39, 1,771,344.09 and 739,479.93
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Solution
The fourth proportional to 1,283,448.39, 1,771,344.09 and 739,479.93 is: 1,020,589.07
Step by Step Solution
- Step 1: Write the proportion equation
1,283,448.39 : 1,771,344.09 = 739,479.93 : x - Step 2: Convert to fraction form
1,283,448.39/1,771,344.09 = 739,479.93/x - Step 3: Cross multiply
1,283,448.39x = 1,771,344.09 × 739,479.93 - Step 4: Simplify right side
1,283,448.39x = 1,309,873,403,679.11 - Step 5: Solve for x
x = 1,309,873,403,679.11/1,283,448.39 - Step 6: Final answer
x = 1,020,589.07
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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.