Finding the Fourth Proportional to 612,029.52, 917,266.95 and 345,939.66
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Solution
The fourth proportional to 612,029.52, 917,266.95 and 345,939.66 is: 518,470.12
Step by Step Solution
- Step 1: Write the proportion equation
612,029.52 : 917,266.95 = 345,939.66 : x - Step 2: Convert to fraction form
612,029.52/917,266.95 = 345,939.66/x - Step 3: Cross multiply
612,029.52x = 917,266.95 × 345,939.66 - Step 4: Simplify right side
612,029.52x = 317,319,016,812.24 - Step 5: Solve for x
x = 317,319,016,812.24/612,029.52 - Step 6: Final answer
x = 518,470.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.