Finding the Fourth Proportional to 706,121.76, 974,224.08 and 438,005.28
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Solution
The fourth proportional to 706,121.76, 974,224.08 and 438,005.28 is: 604,308.37
Step by Step Solution
- Step 1: Write the proportion equation
706,121.76 : 974,224.08 = 438,005.28 : x - Step 2: Convert to fraction form
706,121.76/974,224.08 = 438,005.28/x - Step 3: Cross multiply
706,121.76x = 974,224.08 × 438,005.28 - Step 4: Simplify right side
706,121.76x = 426,715,290,943.14 - Step 5: Solve for x
x = 426,715,290,943.14/706,121.76 - Step 6: Final answer
x = 604,308.37
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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.