Finding the Fourth Proportional to 540,439.76, 745,730.68 and 307,872.82
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Solution
The fourth proportional to 540,439.76, 745,730.68 and 307,872.82 is: 424,821.08
Step by Step Solution
- Step 1: Write the proportion equation
540,439.76 : 745,730.68 = 307,872.82 : x - Step 2: Convert to fraction form
540,439.76/745,730.68 = 307,872.82/x - Step 3: Cross multiply
540,439.76x = 745,730.68 × 307,872.82 - Step 4: Simplify right side
540,439.76x = 229,590,203,091.23 - Step 5: Solve for x
x = 229,590,203,091.23/540,439.76 - Step 6: Final answer
x = 424,821.08
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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.