Finding the Fourth Proportional to 689,335.09, 950,894.16 and 413,621.62
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Solution
The fourth proportional to 689,335.09, 950,894.16 and 413,621.62 is: 570,564.87
Step by Step Solution
- Step 1: Write the proportion equation
689,335.09 : 950,894.16 = 413,621.62 : x - Step 2: Convert to fraction form
689,335.09/950,894.16 = 413,621.62/x - Step 3: Cross multiply
689,335.09x = 950,894.16 × 413,621.62 - Step 4: Simplify right side
689,335.09x = 393,310,382,907.74 - Step 5: Solve for x
x = 393,310,382,907.74/689,335.09 - Step 6: Final answer
x = 570,564.87
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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.