Finding the Fourth Proportional to 1,272,480.51, 1,908,670.95 and 431,032.26
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Solution
The fourth proportional to 1,272,480.51, 1,908,670.95 and 431,032.26 is: 646,531.52
Step by Step Solution
- Step 1: Write the proportion equation
1,272,480.51 : 1,908,670.95 = 431,032.26 : x - Step 2: Convert to fraction form
1,272,480.51/1,908,670.95 = 431,032.26/x - Step 3: Cross multiply
1,272,480.51x = 1,908,670.95 × 431,032.26 - Step 4: Simplify right side
1,272,480.51x = 822,698,753,174.85 - Step 5: Solve for x
x = 822,698,753,174.85/1,272,480.51 - Step 6: Final answer
x = 646,531.52
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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.