Finding the Fourth Proportional to 720,850.80, 994,737.24 and 402,898.80
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Solution
The fourth proportional to 720,850.80, 994,737.24 and 402,898.80 is: 555,979.74
Step by Step Solution
- Step 1: Write the proportion equation
720,850.80 : 994,737.24 = 402,898.80 : x - Step 2: Convert to fraction form
720,850.80/994,737.24 = 402,898.80/x - Step 3: Cross multiply
720,850.80x = 994,737.24 × 402,898.80 - Step 4: Simplify right side
720,850.80x = 400,778,440,311.31 - Step 5: Solve for x
x = 400,778,440,311.31/720,850.80 - Step 6: Final answer
x = 555,979.74
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1.5x scale
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.