Finding the Fourth Proportional to 818,704.05, 1,129,045.28 and 647,032.14
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Solution
The fourth proportional to 818,704.05, 1,129,045.28 and 647,032.14 is: 892,298.73
Step by Step Solution
- Step 1: Write the proportion equation
818,704.05 : 1,129,045.28 = 647,032.14 : x - Step 2: Convert to fraction form
818,704.05/1,129,045.28 = 647,032.14/x - Step 3: Cross multiply
818,704.05x = 1,129,045.28 × 647,032.14 - Step 4: Simplify right side
818,704.05x = 730,528,580,440.14 - Step 5: Solve for x
x = 730,528,580,440.14/818,704.05 - Step 6: Final answer
x = 892,298.73
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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.