Finding the Fourth Proportional to 2,105,746.23, 2,905,929.96 and 1,138,876.26
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Solution
The fourth proportional to 2,105,746.23, 2,905,929.96 and 1,138,876.26 is: 1,571,649.33
Step by Step Solution
- Step 1: Write the proportion equation
2,105,746.23 : 2,905,929.96 = 1,138,876.26 : x - Step 2: Convert to fraction form
2,105,746.23/2,905,929.96 = 1,138,876.26/x - Step 3: Cross multiply
2,105,746.23x = 2,905,929.96 × 1,138,876.26 - Step 4: Simplify right side
2,105,746.23x = 3,309,494,644,666.75 - Step 5: Solve for x
x = 3,309,494,644,666.75/2,105,746.23 - Step 6: Final answer
x = 1,571,649.33
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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.