Finding the Fourth Proportional to 805,907.36, 1,112,189.76 and 466,309.92
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Solution
The fourth proportional to 805,907.36, 1,112,189.76 and 466,309.92 is: 643,529.45
Step by Step Solution
- Step 1: Write the proportion equation
805,907.36 : 1,112,189.76 = 466,309.92 : x - Step 2: Convert to fraction form
805,907.36/1,112,189.76 = 466,309.92/x - Step 3: Cross multiply
805,907.36x = 1,112,189.76 × 466,309.92 - Step 4: Simplify right side
805,907.36x = 518,625,118,010.42 - Step 5: Solve for x
x = 518,625,118,010.42/805,907.36 - Step 6: Final answer
x = 643,529.45
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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.