Finding the Fourth Proportional to 532,107.21, 734,323.51 and 290,405.28
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Solution
The fourth proportional to 532,107.21, 734,323.51 and 290,405.28 is: 400,767.78
Step by Step Solution
- Step 1: Write the proportion equation
532,107.21 : 734,323.51 = 290,405.28 : x - Step 2: Convert to fraction form
532,107.21/734,323.51 = 290,405.28/x - Step 3: Cross multiply
532,107.21x = 734,323.51 × 290,405.28 - Step 4: Simplify right side
532,107.21x = 213,251,424,532.13 - Step 5: Solve for x
x = 213,251,424,532.13/532,107.21 - Step 6: Final answer
x = 400,767.78
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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.