Finding the Fourth Proportional to 913,230.20, 1,260,259.18 and 505,349.21
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Solution
The fourth proportional to 913,230.20, 1,260,259.18 and 505,349.21 is: 697,382.74
Step by Step Solution
- Step 1: Write the proportion equation
913,230.20 : 1,260,259.18 = 505,349.21 : x - Step 2: Convert to fraction form
913,230.20/1,260,259.18 = 505,349.21/x - Step 3: Cross multiply
913,230.20x = 1,260,259.18 × 505,349.21 - Step 4: Simplify right side
913,230.20x = 636,870,973,443.58 - Step 5: Solve for x
x = 636,870,973,443.58/913,230.20 - Step 6: Final answer
x = 697,382.74
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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.