Finding the Fourth Proportional to 805,163.70, 1,111,113.45 and 442,579.80
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Solution
The fourth proportional to 805,163.70, 1,111,113.45 and 442,579.80 is: 610,753.28
Step by Step Solution
- Step 1: Write the proportion equation
805,163.70 : 1,111,113.45 = 442,579.80 : x - Step 2: Convert to fraction form
805,163.70/1,111,113.45 = 442,579.80/x - Step 3: Cross multiply
805,163.70x = 1,111,113.45 × 442,579.80 - Step 4: Simplify right side
805,163.70x = 491,756,368,478.31 - Step 5: Solve for x
x = 491,756,368,478.31/805,163.70 - Step 6: Final answer
x = 610,753.28
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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.