Finding the Fourth Proportional to 805,535.18, 1,111,562.49 and 478,821.98
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Solution
The fourth proportional to 805,535.18, 1,111,562.49 and 478,821.98 is: 660,729.13
Step by Step Solution
- Step 1: Write the proportion equation
805,535.18 : 1,111,562.49 = 478,821.98 : x - Step 2: Convert to fraction form
805,535.18/1,111,562.49 = 478,821.98/x - Step 3: Cross multiply
805,535.18x = 1,111,562.49 × 478,821.98 - Step 4: Simplify right side
805,535.18x = 532,240,556,930.02 - Step 5: Solve for x
x = 532,240,556,930.02/805,535.18 - Step 6: Final answer
x = 660,729.13
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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.