Finding the Fourth Proportional to 638,951.68, 881,762.93 and 352,465.62
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Solution
The fourth proportional to 638,951.68, 881,762.93 and 352,465.62 is: 486,407.86
Step by Step Solution
- Step 1: Write the proportion equation
638,951.68 : 881,762.93 = 352,465.62 : x - Step 2: Convert to fraction form
638,951.68/881,762.93 = 352,465.62/x - Step 3: Cross multiply
638,951.68x = 881,762.93 × 352,465.62 - Step 4: Simplify right side
638,951.68x = 310,791,117,815.47 - Step 5: Solve for x
x = 310,791,117,815.47/638,951.68 - Step 6: Final answer
x = 486,407.86
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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.