Finding the Fourth Proportional to 1,201,321.08, 1,657,659.47 and 717,784.02
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Solution
The fourth proportional to 1,201,321.08, 1,657,659.47 and 717,784.02 is: 990,444.18
Step by Step Solution
- Step 1: Write the proportion equation
1,201,321.08 : 1,657,659.47 = 717,784.02 : x - Step 2: Convert to fraction form
1,201,321.08/1,657,659.47 = 717,784.02/x - Step 3: Cross multiply
1,201,321.08x = 1,657,659.47 × 717,784.02 - Step 4: Simplify right side
1,201,321.08x = 1,189,841,474,578.75 - Step 5: Solve for x
x = 1,189,841,474,578.75/1,201,321.08 - Step 6: Final answer
x = 990,444.18
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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.