Finding the Fourth Proportional to 629,437.36, 868,612.60 and 342,959.80
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Solution
The fourth proportional to 629,437.36, 868,612.60 and 342,959.80 is: 473,278.55
Step by Step Solution
- Step 1: Write the proportion equation
629,437.36 : 868,612.60 = 342,959.80 : x - Step 2: Convert to fraction form
629,437.36/868,612.60 = 342,959.80/x - Step 3: Cross multiply
629,437.36x = 868,612.60 × 342,959.80 - Step 4: Simplify right side
629,437.36x = 297,899,203,573.48 - Step 5: Solve for x
x = 297,899,203,573.48/629,437.36 - Step 6: Final answer
x = 473,278.55
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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.