Finding the Fourth Proportional to 1,542,984.86, 2,129,341.12 and 889,597.94
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Solution
The fourth proportional to 1,542,984.86, 2,129,341.12 and 889,597.94 is: 1,227,657.85
Step by Step Solution
- Step 1: Write the proportion equation
1,542,984.86 : 2,129,341.12 = 889,597.94 : x - Step 2: Convert to fraction form
1,542,984.86/2,129,341.12 = 889,597.94/x - Step 3: Cross multiply
1,542,984.86x = 2,129,341.12 × 889,597.94 - Step 4: Simplify right side
1,542,984.86x = 1,894,257,473,909.29 - Step 5: Solve for x
x = 1,894,257,473,909.29/1,542,984.86 - Step 6: Final answer
x = 1,227,657.85
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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.