Finding the Fourth Proportional to 1,126,157.86, 1,689,315.63 and 452,239.12
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Solution
The fourth proportional to 1,126,157.86, 1,689,315.63 and 452,239.12 is: 678,390.34
Step by Step Solution
- Step 1: Write the proportion equation
1,126,157.86 : 1,689,315.63 = 452,239.12 : x - Step 2: Convert to fraction form
1,126,157.86/1,689,315.63 = 452,239.12/x - Step 3: Cross multiply
1,126,157.86x = 1,689,315.63 × 452,239.12 - Step 4: Simplify right side
1,126,157.86x = 763,974,613,913.45 - Step 5: Solve for x
x = 763,974,613,913.45/1,126,157.86 - Step 6: Final answer
x = 678,390.34
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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.