Finding the Fourth Proportional to 881,347.68, 1,216,259.64 and 478,939.68
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Solution
The fourth proportional to 881,347.68, 1,216,259.64 and 478,939.68 is: 660,936.67
Step by Step Solution
- Step 1: Write the proportion equation
881,347.68 : 1,216,259.64 = 478,939.68 : x - Step 2: Convert to fraction form
881,347.68/1,216,259.64 = 478,939.68/x - Step 3: Cross multiply
881,347.68x = 1,216,259.64 × 478,939.68 - Step 4: Simplify right side
881,347.68x = 582,515,002,778.52 - Step 5: Solve for x
x = 582,515,002,778.52/881,347.68 - Step 6: Final answer
x = 660,936.67
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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.