Finding the Fourth Proportional to 398,987.19, 550,482.36 and 262,972.26
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Solution
The fourth proportional to 398,987.19, 550,482.36 and 262,972.26 is: 362,822.65
Step by Step Solution
- Step 1: Write the proportion equation
398,987.19 : 550,482.36 = 262,972.26 : x - Step 2: Convert to fraction form
398,987.19/550,482.36 = 262,972.26/x - Step 3: Cross multiply
398,987.19x = 550,482.36 × 262,972.26 - Step 4: Simplify right side
398,987.19x = 144,761,590,299.33 - Step 5: Solve for x
x = 144,761,590,299.33/398,987.19 - Step 6: Final answer
x = 362,822.65
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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.