Finding the Fourth Proportional to 680,698.08, 1,021,047.36 and 306,283.68
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Solution
The fourth proportional to 680,698.08, 1,021,047.36 and 306,283.68 is: 459,425.63
Step by Step Solution
- Step 1: Write the proportion equation
680,698.08 : 1,021,047.36 = 306,283.68 : x - Step 2: Convert to fraction form
680,698.08/1,021,047.36 = 306,283.68/x - Step 3: Cross multiply
680,698.08x = 1,021,047.36 × 306,283.68 - Step 4: Simplify right side
680,698.08x = 312,730,142,875.09 - Step 5: Solve for x
x = 312,730,142,875.09/680,698.08 - Step 6: Final answer
x = 459,425.63
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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.