Finding the Fourth Proportional to 1,272,045.80, 1,906,882.86 and 430,008.68
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Solution
The fourth proportional to 1,272,045.80, 1,906,882.86 and 430,008.68 is: 644,612.15
Step by Step Solution
- Step 1: Write the proportion equation
1,272,045.80 : 1,906,882.86 = 430,008.68 : x - Step 2: Convert to fraction form
1,272,045.80/1,906,882.86 = 430,008.68/x - Step 3: Cross multiply
1,272,045.80x = 1,906,882.86 × 430,008.68 - Step 4: Simplify right side
1,272,045.80x = 819,976,181,543.23 - Step 5: Solve for x
x = 819,976,181,543.23/1,272,045.80 - Step 6: Final answer
x = 644,612.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.