Finding the Fourth Proportional to 869,749.68, 1,200,062.88 and 841,078.08
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Solution
The fourth proportional to 869,749.68, 1,200,062.88 and 841,078.08 is: 1,160,502.39
Step by Step Solution
- Step 1: Write the proportion equation
869,749.68 : 1,200,062.88 = 841,078.08 : x - Step 2: Convert to fraction form
869,749.68/1,200,062.88 = 841,078.08/x - Step 3: Cross multiply
869,749.68x = 1,200,062.88 × 841,078.08 - Step 4: Simplify right side
869,749.68x = 1,009,346,582,989.67 - Step 5: Solve for x
x = 1,009,346,582,989.67/869,749.68 - Step 6: Final answer
x = 1,160,502.39
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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.