Finding the Fourth Proportional to 857,998.19, 1,184,014.93 and 470,812.42
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Solution
The fourth proportional to 857,998.19, 1,184,014.93 and 470,812.42 is: 649,708.75
Step by Step Solution
- Step 1: Write the proportion equation
857,998.19 : 1,184,014.93 = 470,812.42 : x - Step 2: Convert to fraction form
857,998.19/1,184,014.93 = 470,812.42/x - Step 3: Cross multiply
857,998.19x = 1,184,014.93 × 470,812.42 - Step 4: Simplify right side
857,998.19x = 557,448,934,509.43 - Step 5: Solve for x
x = 557,448,934,509.43/857,998.19 - Step 6: Final answer
x = 649,708.75
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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.