Finding the Fourth Proportional to 628,789.28, 867,701.99 and 342,310.37
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Solution
The fourth proportional to 628,789.28, 867,701.99 and 342,310.37 is: 472,373.49
Step by Step Solution
- Step 1: Write the proportion equation
628,789.28 : 867,701.99 = 342,310.37 : x - Step 2: Convert to fraction form
628,789.28/867,701.99 = 342,310.37/x - Step 3: Cross multiply
628,789.28x = 867,701.99 × 342,310.37 - Step 4: Simplify right side
628,789.28x = 297,023,387,535.08 - Step 5: Solve for x
x = 297,023,387,535.08/628,789.28 - Step 6: Final answer
x = 472,373.49
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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.