Finding the Fourth Proportional to 1,259,417.69, 1,737,997.62 and 686,460.14
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Solution
The fourth proportional to 1,259,417.69, 1,737,997.62 and 686,460.14 is: 947,315.65
Step by Step Solution
- Step 1: Write the proportion equation
1,259,417.69 : 1,737,997.62 = 686,460.14 : x - Step 2: Convert to fraction form
1,259,417.69/1,737,997.62 = 686,460.14/x - Step 3: Cross multiply
1,259,417.69x = 1,737,997.62 × 686,460.14 - Step 4: Simplify right side
1,259,417.69x = 1,193,066,089,544.87 - Step 5: Solve for x
x = 1,193,066,089,544.87/1,259,417.69 - Step 6: Final answer
x = 947,315.65
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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.