Finding the Fourth Proportional to 547,397.65, 755,407.28 and 305,678.26
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Solution
The fourth proportional to 547,397.65, 755,407.28 and 305,678.26 is: 421,835.17
Step by Step Solution
- Step 1: Write the proportion equation
547,397.65 : 755,407.28 = 305,678.26 : x - Step 2: Convert to fraction form
547,397.65/755,407.28 = 305,678.26/x - Step 3: Cross multiply
547,397.65x = 755,407.28 × 305,678.26 - Step 4: Simplify right side
547,397.65x = 230,911,577,636.31 - Step 5: Solve for x
x = 230,911,577,636.31/547,397.65 - Step 6: Final answer
x = 421,835.17
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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.