Finding the Fourth Proportional to 759,730.06, 1,048,357.11 and 420,191.02
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Solution
The fourth proportional to 759,730.06, 1,048,357.11 and 420,191.02 is: 579,824.69
Step by Step Solution
- Step 1: Write the proportion equation
759,730.06 : 1,048,357.11 = 420,191.02 : x - Step 2: Convert to fraction form
759,730.06/1,048,357.11 = 420,191.02/x - Step 3: Cross multiply
759,730.06x = 1,048,357.11 × 420,191.02 - Step 4: Simplify right side
759,730.06x = 440,510,243,375.15 - Step 5: Solve for x
x = 440,510,243,375.15/759,730.06 - Step 6: Final answer
x = 579,824.69
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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.