Finding the Fourth Proportional to 862,090.26, 1,189,683.99 and 499,724.07
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Solution
The fourth proportional to 862,090.26, 1,189,683.99 and 499,724.07 is: 689,618.89
Step by Step Solution
- Step 1: Write the proportion equation
862,090.26 : 1,189,683.99 = 499,724.07 : x - Step 2: Convert to fraction form
862,090.26/1,189,683.99 = 499,724.07/x - Step 3: Cross multiply
862,090.26x = 1,189,683.99 × 499,724.07 - Step 4: Simplify right side
862,090.26x = 594,513,725,496.64 - Step 5: Solve for x
x = 594,513,725,496.64/862,090.26 - Step 6: Final answer
x = 689,618.89
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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.