Finding the Fourth Proportional to 688,296.24, 949,913.10 and 416,431.08
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Solution
The fourth proportional to 688,296.24, 949,913.10 and 416,431.08 is: 574,713.79
Step by Step Solution
- Step 1: Write the proportion equation
688,296.24 : 949,913.10 = 416,431.08 : x - Step 2: Convert to fraction form
688,296.24/949,913.10 = 416,431.08/x - Step 3: Cross multiply
688,296.24x = 949,913.10 × 416,431.08 - Step 4: Simplify right side
688,296.24x = 395,573,338,139.15 - Step 5: Solve for x
x = 395,573,338,139.15/688,296.24 - Step 6: Final answer
x = 574,713.79
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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.