Finding the Fourth Proportional to 761,328.62, 1,050,587.97 and 421,772.30
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Solution
The fourth proportional to 761,328.62, 1,050,587.97 and 421,772.30 is: 582,020.55
Step by Step Solution
- Step 1: Write the proportion equation
761,328.62 : 1,050,587.97 = 421,772.30 : x - Step 2: Convert to fraction form
761,328.62/1,050,587.97 = 421,772.30/x - Step 3: Cross multiply
761,328.62x = 1,050,587.97 × 421,772.30 - Step 4: Simplify right side
761,328.62x = 443,108,904,459.23 - Step 5: Solve for x
x = 443,108,904,459.23/761,328.62 - Step 6: Final answer
x = 582,020.55
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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.