Finding the Fourth Proportional to 3,115,148.96, 4,672,702.20 and 1,676,509.28
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Solution
The fourth proportional to 3,115,148.96, 4,672,702.20 and 1,676,509.28 is: 2,514,752.49
Step by Step Solution
- Step 1: Write the proportion equation
3,115,148.96 : 4,672,702.20 = 1,676,509.28 : x - Step 2: Convert to fraction form
3,115,148.96/4,672,702.20 = 1,676,509.28/x - Step 3: Cross multiply
3,115,148.96x = 4,672,702.20 × 1,676,509.28 - Step 4: Simplify right side
3,115,148.96x = 7,833,828,600,976.42 - Step 5: Solve for x
x = 7,833,828,600,976.42/3,115,148.96 - Step 6: Final answer
x = 2,514,752.49
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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.