Finding the Fourth Proportional to 1,118,971.05, 1,678,675.28 and 479,273.55
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Solution
The fourth proportional to 1,118,971.05, 1,678,675.28 and 479,273.55 is: 719,004.00
Step by Step Solution
- Step 1: Write the proportion equation
1,118,971.05 : 1,678,675.28 = 479,273.55 : x - Step 2: Convert to fraction form
1,118,971.05/1,678,675.28 = 479,273.55/x - Step 3: Cross multiply
1,118,971.05x = 1,678,675.28 × 479,273.55 - Step 4: Simplify right side
1,118,971.05x = 804,544,658,346.48 - Step 5: Solve for x
x = 804,544,658,346.48/1,118,971.05 - Step 6: Final answer
x = 719,004.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.