Finding the Fourth Proportional to 797,686.36, 1,101,213.68 and 615,990.40
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Solution
The fourth proportional to 797,686.36, 1,101,213.68 and 615,990.40 is: 850,380.66
Step by Step Solution
- Step 1: Write the proportion equation
797,686.36 : 1,101,213.68 = 615,990.40 : x - Step 2: Convert to fraction form
797,686.36/1,101,213.68 = 615,990.40/x - Step 3: Cross multiply
797,686.36x = 1,101,213.68 × 615,990.40 - Step 4: Simplify right side
797,686.36x = 678,337,053,525.24 - Step 5: Solve for x
x = 678,337,053,525.24/797,686.36 - Step 6: Final answer
x = 850,380.66
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1.5x scale
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.