Finding the Fourth Proportional to 723,445.74, 998,365.77 and 396,790.02
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Solution
The fourth proportional to 723,445.74, 998,365.77 and 396,790.02 is: 547,576.07
Step by Step Solution
- Step 1: Write the proportion equation
723,445.74 : 998,365.77 = 396,790.02 : x - Step 2: Convert to fraction form
723,445.74/998,365.77 = 396,790.02/x - Step 3: Cross multiply
723,445.74x = 998,365.77 × 396,790.02 - Step 4: Simplify right side
723,445.74x = 396,141,573,845.62 - Step 5: Solve for x
x = 396,141,573,845.62/723,445.74 - Step 6: Final answer
x = 547,576.07
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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.