Finding the Third Proportional to 420,643.13 and 917,412.75
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Solution
The third proportional to 420,643.13 and 917,412.75 is: 2,000,855.60
Step by Step Solution
- Step 1: Write the proportion equation
420,643.13 : 917,412.75 = 917,412.75 : x - Step 2: Convert to fraction form
420,643.13/917,412.75 = 917,412.75/x - Step 3: Cross multiply
420,643.13x = 917,412.75 × 917,412.75 - Step 4: Simplify right side
420,643.13x = 841,646,153,862.56 - Step 5: Solve for x
x = 841,646,153,862.56/420,643.13 - Step 6: Final answer
x = 2,000,855.60
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.