Finding the Fourth Proportional to 509,461.36, 702,877.44 and 305,578.28
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Solution
The fourth proportional to 509,461.36, 702,877.44 and 305,578.28 is: 421,590.52
Step by Step Solution
- Step 1: Write the proportion equation
509,461.36 : 702,877.44 = 305,578.28 : x - Step 2: Convert to fraction form
509,461.36/702,877.44 = 305,578.28/x - Step 3: Cross multiply
509,461.36x = 702,877.44 × 305,578.28 - Step 4: Simplify right side
509,461.36x = 214,784,079,166.00 - Step 5: Solve for x
x = 214,784,079,166.00/509,461.36 - Step 6: Final answer
x = 421,590.52
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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.