Finding the Fourth Proportional to 521,011.70, 780,934.35 and 296,479.70
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Solution
The fourth proportional to 521,011.70, 780,934.35 and 296,479.70 is: 444,387.68
Step by Step Solution
- Step 1: Write the proportion equation
521,011.70 : 780,934.35 = 296,479.70 : x - Step 2: Convert to fraction form
521,011.70/780,934.35 = 296,479.70/x - Step 3: Cross multiply
521,011.70x = 780,934.35 × 296,479.70 - Step 4: Simplify right side
521,011.70x = 231,531,181,807.70 - Step 5: Solve for x
x = 231,531,181,807.70/521,011.70 - Step 6: Final answer
x = 444,387.68
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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.