Finding the Fourth Proportional to 712,097.78, 982,696.18 and 389,808.08
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Solution
The fourth proportional to 712,097.78, 982,696.18 and 389,808.08 is: 537,935.83
Step by Step Solution
- Step 1: Write the proportion equation
712,097.78 : 982,696.18 = 389,808.08 : x - Step 2: Convert to fraction form
712,097.78/982,696.18 = 389,808.08/x - Step 3: Cross multiply
712,097.78x = 982,696.18 × 389,808.08 - Step 4: Simplify right side
712,097.78x = 383,062,911,149.13 - Step 5: Solve for x
x = 383,062,911,149.13/712,097.78 - Step 6: Final answer
x = 537,935.83
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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.