Finding the Fourth Proportional to 857,614.24, 1,183,564.56 and 475,657.12
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Solution
The fourth proportional to 857,614.24, 1,183,564.56 and 475,657.12 is: 656,438.39
Step by Step Solution
- Step 1: Write the proportion equation
857,614.24 : 1,183,564.56 = 475,657.12 : x - Step 2: Convert to fraction form
857,614.24/1,183,564.56 = 475,657.12/x - Step 3: Cross multiply
857,614.24x = 1,183,564.56 × 475,657.12 - Step 4: Simplify right side
857,614.24x = 562,970,909,943.67 - Step 5: Solve for x
x = 562,970,909,943.67/857,614.24 - Step 6: Final answer
x = 656,438.39
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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.