Finding the Fourth Proportional to 2,154,053.18, 2,972,710.32 and 1,236,274.99
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Solution
The fourth proportional to 2,154,053.18, 2,972,710.32 and 1,236,274.99 is: 1,706,126.60
Step by Step Solution
- Step 1: Write the proportion equation
2,154,053.18 : 2,972,710.32 = 1,236,274.99 : x - Step 2: Convert to fraction form
2,154,053.18/2,972,710.32 = 1,236,274.99/x - Step 3: Cross multiply
2,154,053.18x = 2,972,710.32 × 1,236,274.99 - Step 4: Simplify right side
2,154,053.18x = 3,675,087,421,130.90 - Step 5: Solve for x
x = 3,675,087,421,130.90/2,154,053.18 - Step 6: Final answer
x = 1,706,126.60
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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.