Finding the Fourth Proportional to 1,547,487.63, 2,320,172.69 and 787,859.19
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Solution
The fourth proportional to 1,547,487.63, 2,320,172.69 and 787,859.19 is: 1,181,249.75
Step by Step Solution
- Step 1: Write the proportion equation
1,547,487.63 : 2,320,172.69 = 787,859.19 : x - Step 2: Convert to fraction form
1,547,487.63/2,320,172.69 = 787,859.19/x - Step 3: Cross multiply
1,547,487.63x = 2,320,172.69 × 787,859.19 - Step 4: Simplify right side
1,547,487.63x = 1,827,969,372,264.23 - Step 5: Solve for x
x = 1,827,969,372,264.23/1,547,487.63 - Step 6: Final answer
x = 1,181,249.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.