Finding the Fourth Proportional to 823,964.20, 1,235,946.30 and 292,085.80
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Solution
The fourth proportional to 823,964.20, 1,235,946.30 and 292,085.80 is: 438,128.70
Step by Step Solution
- Step 1: Write the proportion equation
823,964.20 : 1,235,946.30 = 292,085.80 : x - Step 2: Convert to fraction form
823,964.20/1,235,946.30 = 292,085.80/x - Step 3: Cross multiply
823,964.20x = 1,235,946.30 × 292,085.80 - Step 4: Simplify right side
823,964.20x = 361,002,363,792.54 - Step 5: Solve for x
x = 361,002,363,792.54/823,964.20 - Step 6: Final answer
x = 438,128.70
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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.