Finding the Fourth Proportional to 690,739.08, 1,034,195.46 and 353,052.54
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Solution
The fourth proportional to 690,739.08, 1,034,195.46 and 353,052.54 is: 528,600.95
Step by Step Solution
- Step 1: Write the proportion equation
690,739.08 : 1,034,195.46 = 353,052.54 : x - Step 2: Convert to fraction form
690,739.08/1,034,195.46 = 353,052.54/x - Step 3: Cross multiply
690,739.08x = 1,034,195.46 × 353,052.54 - Step 4: Simplify right side
690,739.08x = 365,125,334,009.47 - Step 5: Solve for x
x = 365,125,334,009.47/690,739.08 - Step 6: Final answer
x = 528,600.95
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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.