Finding the Fourth Proportional to 745,405.20, 1,118,107.80 and 184,439.70
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Solution
The fourth proportional to 745,405.20, 1,118,107.80 and 184,439.70 is: 276,659.55
Step by Step Solution
- Step 1: Write the proportion equation
745,405.20 : 1,118,107.80 = 184,439.70 : x - Step 2: Convert to fraction form
745,405.20/1,118,107.80 = 184,439.70/x - Step 3: Cross multiply
745,405.20x = 1,118,107.80 × 184,439.70 - Step 4: Simplify right side
745,405.20x = 206,223,467,199.66 - Step 5: Solve for x
x = 206,223,467,199.66/745,405.20 - Step 6: Final answer
x = 276,659.55
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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.