Finding the Fourth Proportional to 1,191,321.17, 1,644,035.92 and 647,456.99
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Solution
The fourth proportional to 1,191,321.17, 1,644,035.92 and 647,456.99 is: 893,497.55
Step by Step Solution
- Step 1: Write the proportion equation
1,191,321.17 : 1,644,035.92 = 647,456.99 : x - Step 2: Convert to fraction form
1,191,321.17/1,644,035.92 = 647,456.99/x - Step 3: Cross multiply
1,191,321.17x = 1,644,035.92 × 647,456.99 - Step 4: Simplify right side
1,191,321.17x = 1,064,442,547,623.96 - Step 5: Solve for x
x = 1,064,442,547,623.96/1,191,321.17 - Step 6: Final answer
x = 893,497.55
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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.