Finding the Fourth Proportional to 1,375,128.06, 1,897,640.28 and 763,279.08
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Solution
The fourth proportional to 1,375,128.06, 1,897,640.28 and 763,279.08 is: 1,053,304.90
Step by Step Solution
- Step 1: Write the proportion equation
1,375,128.06 : 1,897,640.28 = 763,279.08 : x - Step 2: Convert to fraction form
1,375,128.06/1,897,640.28 = 763,279.08/x - Step 3: Cross multiply
1,375,128.06x = 1,897,640.28 × 763,279.08 - Step 4: Simplify right side
1,375,128.06x = 1,448,429,127,089.34 - Step 5: Solve for x
x = 1,448,429,127,089.34/1,375,128.06 - Step 6: Final answer
x = 1,053,304.90
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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.