Finding the Fourth Proportional to 649,324.20, 972,236.70 and 509,356.20
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Solution
The fourth proportional to 649,324.20, 972,236.70 and 509,356.20 is: 762,661.84
Step by Step Solution
- Step 1: Write the proportion equation
649,324.20 : 972,236.70 = 509,356.20 : x - Step 2: Convert to fraction form
649,324.20/972,236.70 = 509,356.20/x - Step 3: Cross multiply
649,324.20x = 972,236.70 × 509,356.20 - Step 4: Simplify right side
649,324.20x = 495,214,791,012.54 - Step 5: Solve for x
x = 495,214,791,012.54/649,324.20 - Step 6: Final answer
x = 762,661.84
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1.5x scale
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.