Finding the Fourth Proportional to 721,807.14, 996,117.36 and 415,859.50
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Solution
The fourth proportional to 721,807.14, 996,117.36 and 415,859.50 is: 573,899.65
Step by Step Solution
- Step 1: Write the proportion equation
721,807.14 : 996,117.36 = 415,859.50 : x - Step 2: Convert to fraction form
721,807.14/996,117.36 = 415,859.50/x - Step 3: Cross multiply
721,807.14x = 996,117.36 × 415,859.50 - Step 4: Simplify right side
721,807.14x = 414,244,867,270.92 - Step 5: Solve for x
x = 414,244,867,270.92/721,807.14 - Step 6: Final answer
x = 573,899.65
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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.