Finding the Fourth Proportional to 1,134,032.13, 1,562,811.12 and 811,181.70
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Solution
The fourth proportional to 1,134,032.13, 1,562,811.12 and 811,181.70 is: 1,117,890.53
Step by Step Solution
- Step 1: Write the proportion equation
1,134,032.13 : 1,562,811.12 = 811,181.70 : x - Step 2: Convert to fraction form
1,134,032.13/1,562,811.12 = 811,181.70/x - Step 3: Cross multiply
1,134,032.13x = 1,562,811.12 × 811,181.70 - Step 4: Simplify right side
1,134,032.13x = 1,267,723,781,100.50 - Step 5: Solve for x
x = 1,267,723,781,100.50/1,134,032.13 - Step 6: Final answer
x = 1,117,890.53
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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.