Finding the Fourth Proportional to 487,296.74, 672,435.36 and 283,333.18
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Solution
The fourth proportional to 487,296.74, 672,435.36 and 283,333.18 is: 390,979.94
Step by Step Solution
- Step 1: Write the proportion equation
487,296.74 : 672,435.36 = 283,333.18 : x - Step 2: Convert to fraction form
487,296.74/672,435.36 = 283,333.18/x - Step 3: Cross multiply
487,296.74x = 672,435.36 × 283,333.18 - Step 4: Simplify right side
487,296.74x = 190,523,248,893.25 - Step 5: Solve for x
x = 190,523,248,893.25/487,296.74 - Step 6: Final answer
x = 390,979.94
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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.