Finding the Fourth Proportional to 986,013.24, 1,479,241.39 and 312,134.95
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Solution
The fourth proportional to 986,013.24, 1,479,241.39 and 312,134.95 is: 468,272.55
Step by Step Solution
- Step 1: Write the proportion equation
986,013.24 : 1,479,241.39 = 312,134.95 : x - Step 2: Convert to fraction form
986,013.24/1,479,241.39 = 312,134.95/x - Step 3: Cross multiply
986,013.24x = 1,479,241.39 × 312,134.95 - Step 4: Simplify right side
986,013.24x = 461,722,937,305.58 - Step 5: Solve for x
x = 461,722,937,305.58/986,013.24 - Step 6: Final answer
x = 468,272.55
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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.