Finding the Fourth Proportional to 812,490.24, 1,121,233.68 and 454,794.24
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Solution
The fourth proportional to 812,490.24, 1,121,233.68 and 454,794.24 is: 627,614.46
Step by Step Solution
- Step 1: Write the proportion equation
812,490.24 : 1,121,233.68 = 454,794.24 : x - Step 2: Convert to fraction form
812,490.24/1,121,233.68 = 454,794.24/x - Step 3: Cross multiply
812,490.24x = 1,121,233.68 × 454,794.24 - Step 4: Simplify right side
812,490.24x = 509,930,619,358.00 - Step 5: Solve for x
x = 509,930,619,358.00/812,490.24 - Step 6: Final answer
x = 627,614.46
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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.