Finding the Fourth Proportional to 928,892.14, 1,281,747.09 and 515,422.06
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Solution
The fourth proportional to 928,892.14, 1,281,747.09 and 515,422.06 is: 711,213.60
Step by Step Solution
- Step 1: Write the proportion equation
928,892.14 : 1,281,747.09 = 515,422.06 : x - Step 2: Convert to fraction form
928,892.14/1,281,747.09 = 515,422.06/x - Step 3: Cross multiply
928,892.14x = 1,281,747.09 × 515,422.06 - Step 4: Simplify right side
928,892.14x = 660,640,725,526.81 - Step 5: Solve for x
x = 660,640,725,526.81/928,892.14 - Step 6: Final answer
x = 711,213.60
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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.