Finding the Fourth Proportional to 439,564.09, 606,716.72 and 258,397.42
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Solution
The fourth proportional to 439,564.09, 606,716.72 and 258,397.42 is: 356,657.97
Step by Step Solution
- Step 1: Write the proportion equation
439,564.09 : 606,716.72 = 258,397.42 : x - Step 2: Convert to fraction form
439,564.09/606,716.72 = 258,397.42/x - Step 3: Cross multiply
439,564.09x = 606,716.72 × 258,397.42 - Step 4: Simplify right side
439,564.09x = 156,774,035,118.86 - Step 5: Solve for x
x = 156,774,035,118.86/439,564.09 - Step 6: Final answer
x = 356,657.97
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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.