Finding the Fourth Proportional to 871,407.30, 1,202,654.84 and 489,434.07
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Solution
The fourth proportional to 871,407.30, 1,202,654.84 and 489,434.07 is: 675,482.35
Step by Step Solution
- Step 1: Write the proportion equation
871,407.30 : 1,202,654.84 = 489,434.07 : x - Step 2: Convert to fraction form
871,407.30/1,202,654.84 = 489,434.07/x - Step 3: Cross multiply
871,407.30x = 1,202,654.84 × 489,434.07 - Step 4: Simplify right side
871,407.30x = 588,620,253,146.40 - Step 5: Solve for x
x = 588,620,253,146.40/871,407.30 - Step 6: Final answer
x = 675,482.35
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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.