Finding the Fourth Proportional to 514,448.15, 709,943.42 and 285,010.31
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Solution
The fourth proportional to 514,448.15, 709,943.42 and 285,010.31 is: 393,316.99
Step by Step Solution
- Step 1: Write the proportion equation
514,448.15 : 709,943.42 = 285,010.31 : x - Step 2: Convert to fraction form
514,448.15/709,943.42 = 285,010.31/x - Step 3: Cross multiply
514,448.15x = 709,943.42 × 285,010.31 - Step 4: Simplify right side
514,448.15x = 202,341,196,704.05 - Step 5: Solve for x
x = 202,341,196,704.05/514,448.15 - Step 6: Final answer
x = 393,316.99
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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.