Finding the Fourth Proportional to 1,122,423.84, 1,548,919.44 and 613,128.48
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Solution
The fourth proportional to 1,122,423.84, 1,548,919.44 and 613,128.48 is: 846,103.40
Step by Step Solution
- Step 1: Write the proportion equation
1,122,423.84 : 1,548,919.44 = 613,128.48 : x - Step 2: Convert to fraction form
1,122,423.84/1,548,919.44 = 613,128.48/x - Step 3: Cross multiply
1,122,423.84x = 1,548,919.44 × 613,128.48 - Step 4: Simplify right side
1,122,423.84x = 949,686,621,889.65 - Step 5: Solve for x
x = 949,686,621,889.65/1,122,423.84 - Step 6: Final answer
x = 846,103.40
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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.