Finding the Fourth Proportional to 928,948.97, 1,281,883.75 and 515,507.96
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Solution
The fourth proportional to 928,948.97, 1,281,883.75 and 515,507.96 is: 711,364.45
Step by Step Solution
- Step 1: Write the proportion equation
928,948.97 : 1,281,883.75 = 515,507.96 : x - Step 2: Convert to fraction form
928,948.97/1,281,883.75 = 515,507.96/x - Step 3: Cross multiply
928,948.97x = 1,281,883.75 × 515,507.96 - Step 4: Simplify right side
928,948.97x = 660,821,278,835.59 - Step 5: Solve for x
x = 660,821,278,835.59/928,948.97 - Step 6: Final answer
x = 711,364.45
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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.