Finding the Fourth Proportional to 812,092.17, 1,120,588.41 and 449,493.96
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Solution
The fourth proportional to 812,092.17, 1,120,588.41 and 449,493.96 is: 620,246.99
Step by Step Solution
- Step 1: Write the proportion equation
812,092.17 : 1,120,588.41 = 449,493.96 : x - Step 2: Convert to fraction form
812,092.17/1,120,588.41 = 449,493.96/x - Step 3: Cross multiply
812,092.17x = 1,120,588.41 × 449,493.96 - Step 4: Simplify right side
812,092.17x = 503,697,721,941.00 - Step 5: Solve for x
x = 503,697,721,941.00/812,092.17 - Step 6: Final answer
x = 620,246.99
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1.5x scale
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.