Finding the Fourth Proportional to 2,128,917.48, 2,937,467.54 and 1,223,324.52
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Solution
The fourth proportional to 2,128,917.48, 2,937,467.54 and 1,223,324.52 is: 1,687,935.82
Step by Step Solution
- Step 1: Write the proportion equation
2,128,917.48 : 2,937,467.54 = 1,223,324.52 : x - Step 2: Convert to fraction form
2,128,917.48/2,937,467.54 = 1,223,324.52/x - Step 3: Cross multiply
2,128,917.48x = 2,937,467.54 × 1,223,324.52 - Step 4: Simplify right side
2,128,917.48x = 3,593,476,068,386.08 - Step 5: Solve for x
x = 3,593,476,068,386.08/2,128,917.48 - Step 6: Final answer
x = 1,687,935.82
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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.