Finding the Third Proportional to 420,607.69 and 917,340.19
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Solution
The third proportional to 420,607.69 and 917,340.19 is: 2,000,707.65
Step by Step Solution
- Step 1: Write the proportion equation
420,607.69 : 917,340.19 = 917,340.19 : x - Step 2: Convert to fraction form
420,607.69/917,340.19 = 917,340.19/x - Step 3: Cross multiply
420,607.69x = 917,340.19 × 917,340.19 - Step 4: Simplify right side
420,607.69x = 841,513,019,602.54 - Step 5: Solve for x
x = 841,513,019,602.54/420,607.69 - Step 6: Final answer
x = 2,000,707.65
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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.