Finding the Fourth Proportional to 451,638.78, 623,216.61 and 260,713.68
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Solution
The fourth proportional to 451,638.78, 623,216.61 and 260,713.68 is: 359,758.96
Step by Step Solution
- Step 1: Write the proportion equation
451,638.78 : 623,216.61 = 260,713.68 : x - Step 2: Convert to fraction form
451,638.78/623,216.61 = 260,713.68/x - Step 3: Cross multiply
451,638.78x = 623,216.61 × 260,713.68 - Step 4: Simplify right side
451,638.78x = 162,481,095,830.23 - Step 5: Solve for x
x = 162,481,095,830.23/451,638.78 - Step 6: Final answer
x = 359,758.96
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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.