Finding the Fourth Proportional to 709,677.26, 979,208.37 and 407,812.94
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Solution
The fourth proportional to 709,677.26, 979,208.37 and 407,812.94 is: 562,697.82
Step by Step Solution
- Step 1: Write the proportion equation
709,677.26 : 979,208.37 = 407,812.94 : x - Step 2: Convert to fraction form
709,677.26/979,208.37 = 407,812.94/x - Step 3: Cross multiply
709,677.26x = 979,208.37 × 407,812.94 - Step 4: Simplify right side
709,677.26x = 399,333,844,242.31 - Step 5: Solve for x
x = 399,333,844,242.31/709,677.26 - Step 6: Final answer
x = 562,697.82
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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.