Finding the Fourth Proportional to 478,357.84, 716,146.60 and 278,067.44
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Solution
The fourth proportional to 478,357.84, 716,146.60 and 278,067.44 is: 416,293.07
Step by Step Solution
- Step 1: Write the proportion equation
478,357.84 : 716,146.60 = 278,067.44 : x - Step 2: Convert to fraction form
478,357.84/716,146.60 = 278,067.44/x - Step 3: Cross multiply
478,357.84x = 716,146.60 × 278,067.44 - Step 4: Simplify right side
478,357.84x = 199,137,051,726.70 - Step 5: Solve for x
x = 199,137,051,726.70/478,357.84 - Step 6: Final answer
x = 416,293.07
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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.