Finding the Fourth Proportional to 812,573.76, 1,219,068 and 515,167.68
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Solution
The fourth proportional to 812,573.76, 1,219,068 and 515,167.68 is: 772,882.99
Step by Step Solution
- Step 1: Write the proportion equation
812,573.76 : 1,219,068 = 515,167.68 : x - Step 2: Convert to fraction form
812,573.76/1,219,068 = 515,167.68/x - Step 3: Cross multiply
812,573.76x = 1,219,068 × 515,167.68 - Step 4: Simplify right side
812,573.76x = 628,024,433,322.24 - Step 5: Solve for x
x = 628,024,433,322.24/812,573.76 - Step 6: Final answer
x = 772,882.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.