Finding the Fourth Proportional to 939,659.76, 1,296,739.98 and 509,943.60
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Solution
The fourth proportional to 939,659.76, 1,296,739.98 and 509,943.60 is: 703,727.33
Step by Step Solution
- Step 1: Write the proportion equation
939,659.76 : 1,296,739.98 = 509,943.60 : x - Step 2: Convert to fraction form
939,659.76/1,296,739.98 = 509,943.60/x - Step 3: Cross multiply
939,659.76x = 1,296,739.98 × 509,943.60 - Step 4: Simplify right side
939,659.76x = 661,264,253,665.13 - Step 5: Solve for x
x = 661,264,253,665.13/939,659.76 - Step 6: Final answer
x = 703,727.33
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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.