Finding the Fourth Proportional to 641,303.37, 884,860.79 and 386,649.09
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Solution
The fourth proportional to 641,303.37, 884,860.79 and 386,649.09 is: 533,492.62
Step by Step Solution
- Step 1: Write the proportion equation
641,303.37 : 884,860.79 = 386,649.09 : x - Step 2: Convert to fraction form
641,303.37/884,860.79 = 386,649.09/x - Step 3: Cross multiply
641,303.37x = 884,860.79 × 386,649.09 - Step 4: Simplify right side
641,303.37x = 342,130,617,296.94 - Step 5: Solve for x
x = 342,130,617,296.94/641,303.37 - Step 6: Final answer
x = 533,492.62
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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.