Finding the Fourth Proportional to 521,213.04, 719,305.80 and 291,765.84
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Solution
The fourth proportional to 521,213.04, 719,305.80 and 291,765.84 is: 402,654.66
Step by Step Solution
- Step 1: Write the proportion equation
521,213.04 : 719,305.80 = 291,765.84 : x - Step 2: Convert to fraction form
521,213.04/719,305.80 = 291,765.84/x - Step 3: Cross multiply
521,213.04x = 719,305.80 × 291,765.84 - Step 4: Simplify right side
521,213.04x = 209,868,860,953.87 - Step 5: Solve for x
x = 209,868,860,953.87/521,213.04 - Step 6: Final answer
x = 402,654.66
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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.