Finding the Fourth Proportional to 1,358,857.78, 1,875,405.64 and 876,824.36
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Solution
The fourth proportional to 1,358,857.78, 1,875,405.64 and 876,824.36 is: 1,210,134.99
Step by Step Solution
- Step 1: Write the proportion equation
1,358,857.78 : 1,875,405.64 = 876,824.36 : x - Step 2: Convert to fraction form
1,358,857.78/1,875,405.64 = 876,824.36/x - Step 3: Cross multiply
1,358,857.78x = 1,875,405.64 × 876,824.36 - Step 4: Simplify right side
1,358,857.78x = 1,644,401,350,033.39 - Step 5: Solve for x
x = 1,644,401,350,033.39/1,358,857.78 - Step 6: Final answer
x = 1,210,134.99
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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.