Finding the Fourth Proportional to 829,106.60, 1,243,520.76 and 230,128.62
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Solution
The fourth proportional to 829,106.60, 1,243,520.76 and 230,128.62 is: 345,154.31
Step by Step Solution
- Step 1: Write the proportion equation
829,106.60 : 1,243,520.76 = 230,128.62 : x - Step 2: Convert to fraction form
829,106.60/1,243,520.76 = 230,128.62/x - Step 3: Cross multiply
829,106.60x = 1,243,520.76 × 230,128.62 - Step 4: Simplify right side
829,106.60x = 286,169,716,440.15 - Step 5: Solve for x
x = 286,169,716,440.15/829,106.60 - Step 6: Final answer
x = 345,154.31
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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.