Finding the Fourth Proportional to 806,661.81, 1,210,740.84 and 407,582.84
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Solution
The fourth proportional to 806,661.81, 1,210,740.84 and 407,582.84 is: 611,752.26
Step by Step Solution
- Step 1: Write the proportion equation
806,661.81 : 1,210,740.84 = 407,582.84 : x - Step 2: Convert to fraction form
806,661.81/1,210,740.84 = 407,582.84/x - Step 3: Cross multiply
806,661.81x = 1,210,740.84 × 407,582.84 - Step 4: Simplify right side
806,661.81x = 493,477,184,017.48 - Step 5: Solve for x
x = 493,477,184,017.48/806,661.81 - Step 6: Final answer
x = 611,752.26
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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.