Finding the Fourth Proportional to 1,330,480.04, 1,995,691.79 and 431,920.49
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Solution
The fourth proportional to 1,330,480.04, 1,995,691.79 and 431,920.49 is: 647,871.55
Step by Step Solution
- Step 1: Write the proportion equation
1,330,480.04 : 1,995,691.79 = 431,920.49 : x - Step 2: Convert to fraction form
1,330,480.04/1,995,691.79 = 431,920.49/x - Step 3: Cross multiply
1,330,480.04x = 1,995,691.79 × 431,920.49 - Step 4: Simplify right side
1,330,480.04x = 861,980,166,927.12 - Step 5: Solve for x
x = 861,980,166,927.12/1,330,480.04 - Step 6: Final answer
x = 647,871.55
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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.