Finding the Fourth Proportional to 668,339.64, 922,357.49 and 381,853.58
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Solution
The fourth proportional to 668,339.64, 922,357.49 and 381,853.58 is: 526,985.80
Step by Step Solution
- Step 1: Write the proportion equation
668,339.64 : 922,357.49 = 381,853.58 : x - Step 2: Convert to fraction form
668,339.64/922,357.49 = 381,853.58/x - Step 3: Cross multiply
668,339.64x = 922,357.49 × 381,853.58 - Step 4: Simplify right side
668,339.64x = 352,205,503,075.26 - Step 5: Solve for x
x = 352,205,503,075.26/668,339.64 - Step 6: Final answer
x = 526,985.80
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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.