Finding the Fourth Proportional to 722,062.08, 996,532.20 and 420,256.08
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Solution
The fourth proportional to 722,062.08, 996,532.20 and 420,256.08 is: 580,003.75
Step by Step Solution
- Step 1: Write the proportion equation
722,062.08 : 996,532.20 = 420,256.08 : x - Step 2: Convert to fraction form
722,062.08/996,532.20 = 420,256.08/x - Step 3: Cross multiply
722,062.08x = 996,532.20 × 420,256.08 - Step 4: Simplify right side
722,062.08x = 418,798,715,965.78 - Step 5: Solve for x
x = 418,798,715,965.78/722,062.08 - Step 6: Final answer
x = 580,003.75
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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.