Finding the Fourth Proportional to 676,302.15, 933,070.38 and 389,816.09
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Solution
The fourth proportional to 676,302.15, 933,070.38 and 389,816.09 is: 537,815.59
Step by Step Solution
- Step 1: Write the proportion equation
676,302.15 : 933,070.38 = 389,816.09 : x - Step 2: Convert to fraction form
676,302.15/933,070.38 = 389,816.09/x - Step 3: Cross multiply
676,302.15x = 933,070.38 × 389,816.09 - Step 4: Simplify right side
676,302.15x = 363,725,842,561.06 - Step 5: Solve for x
x = 363,725,842,561.06/676,302.15 - Step 6: Final answer
x = 537,815.59
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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.