Finding the Fourth Proportional to 913,434.84, 1,260,530.79 and 505,537.47
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Solution
The fourth proportional to 913,434.84, 1,260,530.79 and 505,537.47 is: 697,636.57
Step by Step Solution
- Step 1: Write the proportion equation
913,434.84 : 1,260,530.79 = 505,537.47 : x - Step 2: Convert to fraction form
913,434.84/1,260,530.79 = 505,537.47/x - Step 3: Cross multiply
913,434.84x = 1,260,530.79 × 505,537.47 - Step 4: Simplify right side
913,434.84x = 637,245,546,433.70 - Step 5: Solve for x
x = 637,245,546,433.70/913,434.84 - Step 6: Final answer
x = 697,636.57
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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.