Finding the Fourth Proportional to 1,287,834.63, 1,777,122.87 and 714,829.68
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Solution
The fourth proportional to 1,287,834.63, 1,777,122.87 and 714,829.68 is: 986,415.60
Step by Step Solution
- Step 1: Write the proportion equation
1,287,834.63 : 1,777,122.87 = 714,829.68 : x - Step 2: Convert to fraction form
1,287,834.63/1,777,122.87 = 714,829.68/x - Step 3: Cross multiply
1,287,834.63x = 1,777,122.87 × 714,829.68 - Step 4: Simplify right side
1,287,834.63x = 1,270,340,172,482.78 - Step 5: Solve for x
x = 1,270,340,172,482.78/1,287,834.63 - Step 6: Final answer
x = 986,415.60
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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.