Finding the Fourth Proportional to 1,038,371.26, 1,557,721.57 and 439,336.91
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Solution
The fourth proportional to 1,038,371.26, 1,557,721.57 and 439,336.91 is: 659,075.03
Step by Step Solution
- Step 1: Write the proportion equation
1,038,371.26 : 1,557,721.57 = 439,336.91 : x - Step 2: Convert to fraction form
1,038,371.26/1,557,721.57 = 439,336.91/x - Step 3: Cross multiply
1,038,371.26x = 1,557,721.57 × 439,336.91 - Step 4: Simplify right side
1,038,371.26x = 684,364,573,415.54 - Step 5: Solve for x
x = 684,364,573,415.54/1,038,371.26 - Step 6: Final answer
x = 659,075.03
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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.