Finding the Fourth Proportional to 878,366.91, 1,212,136.23 and 475,958.91
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Solution
The fourth proportional to 878,366.91, 1,212,136.23 and 475,958.91 is: 656,817.82
Step by Step Solution
- Step 1: Write the proportion equation
878,366.91 : 1,212,136.23 = 475,958.91 : x - Step 2: Convert to fraction form
878,366.91/1,212,136.23 = 475,958.91/x - Step 3: Cross multiply
878,366.91x = 1,212,136.23 × 475,958.91 - Step 4: Simplify right side
878,366.91x = 576,927,038,802.31 - Step 5: Solve for x
x = 576,927,038,802.31/878,366.91 - Step 6: Final answer
x = 656,817.82
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1.5x scale
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.