Finding the Fourth Proportional to 432,918.70, 649,378.05 and 432,918.70
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Solution
The fourth proportional to 432,918.70, 649,378.05 and 432,918.70 is: 649,378.05
Step by Step Solution
- Step 1: Write the proportion equation
432,918.70 : 649,378.05 = 432,918.70 : x - Step 2: Convert to fraction form
432,918.70/649,378.05 = 432,918.70/x - Step 3: Cross multiply
432,918.70x = 649,378.05 × 432,918.70 - Step 4: Simplify right side
432,918.70x = 281,127,901,214.54 - Step 5: Solve for x
x = 281,127,901,214.54/432,918.70 - Step 6: Final answer
x = 649,378.05
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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.