Finding the Fourth Proportional to 1,201,090.24, 1,657,455.13 and 717,921.80
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Solution
The fourth proportional to 1,201,090.24, 1,657,455.13 and 717,921.80 is: 990,702.55
Step by Step Solution
- Step 1: Write the proportion equation
1,201,090.24 : 1,657,455.13 = 717,921.80 : x - Step 2: Convert to fraction form
1,201,090.24/1,657,455.13 = 717,921.80/x - Step 3: Cross multiply
1,201,090.24x = 1,657,455.13 × 717,921.80 - Step 4: Simplify right side
1,201,090.24x = 1,189,923,165,136.11 - Step 5: Solve for x
x = 1,189,923,165,136.11/1,201,090.24 - Step 6: Final answer
x = 990,702.55
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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.