Finding the Fourth Proportional to 1,717,689.11, 2,576,622.42 and 438,307.88
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Solution
The fourth proportional to 1,717,689.11, 2,576,622.42 and 438,307.88 is: 657,484.46
Step by Step Solution
- Step 1: Write the proportion equation
1,717,689.11 : 2,576,622.42 = 438,307.88 : x - Step 2: Convert to fraction form
1,717,689.11/2,576,622.42 = 438,307.88/x - Step 3: Cross multiply
1,717,689.11x = 2,576,622.42 × 438,307.88 - Step 4: Simplify right side
1,717,689.11x = 1,129,353,897,587.56 - Step 5: Solve for x
x = 1,129,353,897,587.56/1,717,689.11 - Step 6: Final answer
x = 657,484.46
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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.