Finding the Fourth Proportional to 1,349,869.68, 1,863,289.28 and 777,138.16
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Solution
The fourth proportional to 1,349,869.68, 1,863,289.28 and 777,138.16 is: 1,072,720.74
Step by Step Solution
- Step 1: Write the proportion equation
1,349,869.68 : 1,863,289.28 = 777,138.16 : x - Step 2: Convert to fraction form
1,349,869.68/1,863,289.28 = 777,138.16/x - Step 3: Cross multiply
1,349,869.68x = 1,863,289.28 × 777,138.16 - Step 4: Simplify right side
1,349,869.68x = 1,448,033,202,606.92 - Step 5: Solve for x
x = 1,448,033,202,606.92/1,349,869.68 - Step 6: Final answer
x = 1,072,720.74
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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.