Finding the Fourth Proportional to 487,293.74, 672,431.22 and 283,330.19
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Solution
The fourth proportional to 487,293.74, 672,431.22 and 283,330.19 is: 390,975.81
Step by Step Solution
- Step 1: Write the proportion equation
487,293.74 : 672,431.22 = 283,330.19 : x - Step 2: Convert to fraction form
487,293.74/672,431.22 = 283,330.19/x - Step 3: Cross multiply
487,293.74x = 672,431.22 × 283,330.19 - Step 4: Simplify right side
487,293.74x = 190,520,063,223.18 - Step 5: Solve for x
x = 190,520,063,223.18/487,293.74 - Step 6: Final answer
x = 390,975.81
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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.