Finding the Fourth Proportional to 716,674.08, 988,985.43 and 394,354.02
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Solution
The fourth proportional to 716,674.08, 988,985.43 and 394,354.02 is: 544,194.90
Step by Step Solution
- Step 1: Write the proportion equation
716,674.08 : 988,985.43 = 394,354.02 : x - Step 2: Convert to fraction form
716,674.08/988,985.43 = 394,354.02/x - Step 3: Cross multiply
716,674.08x = 988,985.43 × 394,354.02 - Step 4: Simplify right side
716,674.08x = 390,010,380,041.93 - Step 5: Solve for x
x = 390,010,380,041.93/716,674.08 - Step 6: Final answer
x = 544,194.90
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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.