Finding the Fourth Proportional to 426,996.06, 640,470.99 and 216,628.53
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Solution
The fourth proportional to 426,996.06, 640,470.99 and 216,628.53 is: 324,931.08
Step by Step Solution
- Step 1: Write the proportion equation
426,996.06 : 640,470.99 = 216,628.53 : x - Step 2: Convert to fraction form
426,996.06/640,470.99 = 216,628.53/x - Step 3: Cross multiply
426,996.06x = 640,470.99 × 216,628.53 - Step 4: Simplify right side
426,996.06x = 138,744,289,071.35 - Step 5: Solve for x
x = 138,744,289,071.35/426,996.06 - Step 6: Final answer
x = 324,931.08
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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.