Finding the Fourth Proportional to 722,524.91, 996,139.16 and 621,634.14
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Solution
The fourth proportional to 722,524.91, 996,139.16 and 621,634.14 is: 857,041.89
Step by Step Solution
- Step 1: Write the proportion equation
722,524.91 : 996,139.16 = 621,634.14 : x - Step 2: Convert to fraction form
722,524.91/996,139.16 = 621,634.14/x - Step 3: Cross multiply
722,524.91x = 996,139.16 × 621,634.14 - Step 4: Simplify right side
722,524.91x = 619,234,106,938.75 - Step 5: Solve for x
x = 619,234,106,938.75/722,524.91 - Step 6: Final answer
x = 857,041.89
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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.