Finding the Fourth Proportional to 812,884.24, 1,219,497.53 and 307,433.91
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Solution
The fourth proportional to 812,884.24, 1,219,497.53 and 307,433.91 is: 461,215.60
Step by Step Solution
- Step 1: Write the proportion equation
812,884.24 : 1,219,497.53 = 307,433.91 : x - Step 2: Convert to fraction form
812,884.24/1,219,497.53 = 307,433.91/x - Step 3: Cross multiply
812,884.24x = 1,219,497.53 × 307,433.91 - Step 4: Simplify right side
812,884.24x = 374,914,896,919.19 - Step 5: Solve for x
x = 374,914,896,919.19/812,884.24 - Step 6: Final answer
x = 461,215.60
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1.5x scale
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.