Finding the Fourth Proportional to 825,577.74, 1,138,835.97 and 519,539.90
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Solution
The fourth proportional to 825,577.74, 1,138,835.97 and 519,539.90 is: 716,674.75
Step by Step Solution
- Step 1: Write the proportion equation
825,577.74 : 1,138,835.97 = 519,539.90 : x - Step 2: Convert to fraction form
825,577.74/1,138,835.97 = 519,539.90/x - Step 3: Cross multiply
825,577.74x = 1,138,835.97 × 519,539.90 - Step 4: Simplify right side
825,577.74x = 591,670,720,276.02 - Step 5: Solve for x
x = 591,670,720,276.02/825,577.74 - Step 6: Final answer
x = 716,674.75
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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.