Finding the Fourth Proportional to 698,656.30, 1,048,243.96 and 485,311.82
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Solution
The fourth proportional to 698,656.30, 1,048,243.96 and 485,311.82 is: 728,147.99
Step by Step Solution
- Step 1: Write the proportion equation
698,656.30 : 1,048,243.96 = 485,311.82 : x - Step 2: Convert to fraction form
698,656.30/1,048,243.96 = 485,311.82/x - Step 3: Cross multiply
698,656.30x = 1,048,243.96 × 485,311.82 - Step 4: Simplify right side
698,656.30x = 508,725,184,031.61 - Step 5: Solve for x
x = 508,725,184,031.61/698,656.30 - Step 6: Final answer
x = 728,147.99
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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.