Finding the Fourth Proportional to 391,261.84, 586,672.44 and 124,959.76
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Solution
The fourth proportional to 391,261.84, 586,672.44 and 124,959.76 is: 187,369.28
Step by Step Solution
- Step 1: Write the proportion equation
391,261.84 : 586,672.44 = 124,959.76 : x - Step 2: Convert to fraction form
391,261.84/586,672.44 = 124,959.76/x - Step 3: Cross multiply
391,261.84x = 586,672.44 × 124,959.76 - Step 4: Simplify right side
391,261.84x = 73,310,447,301.01 - Step 5: Solve for x
x = 73,310,447,301.01/391,261.84 - Step 6: Final answer
x = 187,369.28
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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.