Finding the Fourth Proportional to 761,256.08, 1,050,456.84 and 421,660.88
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Solution
The fourth proportional to 761,256.08, 1,050,456.84 and 421,660.88 is: 581,849.61
Step by Step Solution
- Step 1: Write the proportion equation
761,256.08 : 1,050,456.84 = 421,660.88 : x - Step 2: Convert to fraction form
761,256.08/1,050,456.84 = 421,660.88/x - Step 3: Cross multiply
761,256.08x = 1,050,456.84 × 421,660.88 - Step 4: Simplify right side
761,256.08x = 442,936,555,556.42 - Step 5: Solve for x
x = 442,936,555,556.42/761,256.08 - Step 6: Final answer
x = 581,849.61
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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.