Finding the Fourth Proportional to 1,640,271.26, 2,263,575.74 and 915,119.12
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Solution
The fourth proportional to 1,640,271.26, 2,263,575.74 and 915,119.12 is: 1,262,865.16
Step by Step Solution
- Step 1: Write the proportion equation
1,640,271.26 : 2,263,575.74 = 915,119.12 : x - Step 2: Convert to fraction form
1,640,271.26/2,263,575.74 = 915,119.12/x - Step 3: Cross multiply
1,640,271.26x = 2,263,575.74 × 915,119.12 - Step 4: Simplify right side
1,640,271.26x = 2,071,441,423,348.67 - Step 5: Solve for x
x = 2,071,441,423,348.67/1,640,271.26 - Step 6: Final answer
x = 1,262,865.16
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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.