Finding the Fourth Proportional to 628,965.15, 867,982.28 and 342,490.83
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Solution
The fourth proportional to 628,965.15, 867,982.28 and 342,490.83 is: 472,642.99
Step by Step Solution
- Step 1: Write the proportion equation
628,965.15 : 867,982.28 = 342,490.83 : x - Step 2: Convert to fraction form
628,965.15/867,982.28 = 342,490.83/x - Step 3: Cross multiply
628,965.15x = 867,982.28 × 342,490.83 - Step 4: Simplify right side
628,965.15x = 297,275,969,790.04 - Step 5: Solve for x
x = 297,275,969,790.04/628,965.15 - Step 6: Final answer
x = 472,642.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.