Finding the Fourth Proportional to 453,927.80, 680,891.70 and 313,959.80
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Solution
The fourth proportional to 453,927.80, 680,891.70 and 313,959.80 is: 470,939.70
Step by Step Solution
- Step 1: Write the proportion equation
453,927.80 : 680,891.70 = 313,959.80 : x - Step 2: Convert to fraction form
453,927.80/680,891.70 = 313,959.80/x - Step 3: Cross multiply
453,927.80x = 680,891.70 × 313,959.80 - Step 4: Simplify right side
453,927.80x = 213,772,621,953.66 - Step 5: Solve for x
x = 213,772,621,953.66/453,927.80 - Step 6: Final answer
x = 470,939.70
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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.