Finding the Fourth Proportional to 805,881.21, 1,112,118.69 and 443,332.65
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Solution
The fourth proportional to 805,881.21, 1,112,118.69 and 443,332.65 is: 611,800.50
Step by Step Solution
- Step 1: Write the proportion equation
805,881.21 : 1,112,118.69 = 443,332.65 : x - Step 2: Convert to fraction form
805,881.21/1,112,118.69 = 443,332.65/x - Step 3: Cross multiply
805,881.21x = 1,112,118.69 × 443,332.65 - Step 4: Simplify right side
805,881.21x = 493,038,525,952.23 - Step 5: Solve for x
x = 493,038,525,952.23/805,881.21 - Step 6: Final answer
x = 611,800.50
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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.