Finding the Fourth Proportional to 665,693.44, 918,432.64 and 379,010.68
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Solution
The fourth proportional to 665,693.44, 918,432.64 and 379,010.68 is: 522,907.03
Step by Step Solution
- Step 1: Write the proportion equation
665,693.44 : 918,432.64 = 379,010.68 : x - Step 2: Convert to fraction form
665,693.44/918,432.64 = 379,010.68/x - Step 3: Cross multiply
665,693.44x = 918,432.64 × 379,010.68 - Step 4: Simplify right side
665,693.44x = 348,095,779,420.60 - Step 5: Solve for x
x = 348,095,779,420.60/665,693.44 - Step 6: Final answer
x = 522,907.03
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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.