Finding the Fourth Proportional to 1,542,803.92, 2,129,423.55 and 1,026,579.17
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Solution
The fourth proportional to 1,542,803.92, 2,129,423.55 and 1,026,579.17 is: 1,416,914.90
Step by Step Solution
- Step 1: Write the proportion equation
1,542,803.92 : 2,129,423.55 = 1,026,579.17 : x - Step 2: Convert to fraction form
1,542,803.92/2,129,423.55 = 1,026,579.17/x - Step 3: Cross multiply
1,542,803.92x = 2,129,423.55 × 1,026,579.17 - Step 4: Simplify right side
1,542,803.92x = 2,186,021,862,011.34 - Step 5: Solve for x
x = 2,186,021,862,011.34/1,542,803.92 - Step 6: Final answer
x = 1,416,914.90
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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.