Finding the Fourth Proportional to 687,876.13, 949,263.60 and 377,775.19
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Solution
The fourth proportional to 687,876.13, 949,263.60 and 377,775.19 is: 521,326.76
Step by Step Solution
- Step 1: Write the proportion equation
687,876.13 : 949,263.60 = 377,775.19 : x - Step 2: Convert to fraction form
687,876.13/949,263.60 = 377,775.19/x - Step 3: Cross multiply
687,876.13x = 949,263.60 × 377,775.19 - Step 4: Simplify right side
687,876.13x = 358,608,236,850.08 - Step 5: Solve for x
x = 358,608,236,850.08/687,876.13 - Step 6: Final answer
x = 521,326.76
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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.