Finding the Fourth Proportional to 430,788.72, 594,672.21 and 306,689.70
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Solution
The fourth proportional to 430,788.72, 594,672.21 and 306,689.70 is: 423,362.62
Step by Step Solution
- Step 1: Write the proportion equation
430,788.72 : 594,672.21 = 306,689.70 : x - Step 2: Convert to fraction form
430,788.72/594,672.21 = 306,689.70/x - Step 3: Cross multiply
430,788.72x = 594,672.21 × 306,689.70 - Step 4: Simplify right side
430,788.72x = 182,379,841,683.24 - Step 5: Solve for x
x = 182,379,841,683.24/430,788.72 - Step 6: Final answer
x = 423,362.62
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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.