Finding the Fourth Proportional to 2,172,528.19, 2,997,395.26 and 1,254,636.06
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Solution
The fourth proportional to 2,172,528.19, 2,997,395.26 and 1,254,636.06 is: 1,730,997.18
Step by Step Solution
- Step 1: Write the proportion equation
2,172,528.19 : 2,997,395.26 = 1,254,636.06 : x - Step 2: Convert to fraction form
2,172,528.19/2,997,395.26 = 1,254,636.06/x - Step 3: Cross multiply
2,172,528.19x = 2,997,395.26 × 1,254,636.06 - Step 4: Simplify right side
2,172,528.19x = 3,760,640,179,269.08 - Step 5: Solve for x
x = 3,760,640,179,269.08/2,172,528.19 - Step 6: Final answer
x = 1,730,997.18
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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.