Finding the Fourth Proportional to 1,616,889.70, 2,424,920.86 and 479,385.91
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Solution
The fourth proportional to 1,616,889.70, 2,424,920.86 and 479,385.91 is: 718,956.21
Step by Step Solution
- Step 1: Write the proportion equation
1,616,889.70 : 2,424,920.86 = 479,385.91 : x - Step 2: Convert to fraction form
1,616,889.70/2,424,920.86 = 479,385.91/x - Step 3: Cross multiply
1,616,889.70x = 2,424,920.86 × 479,385.91 - Step 4: Simplify right side
1,616,889.70x = 1,162,472,893,149.08 - Step 5: Solve for x
x = 1,162,472,893,149.08/1,616,889.70 - Step 6: Final answer
x = 718,956.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.