Finding the Fourth Proportional to 766,641.70, 1,057,972.50 and 422,489.98
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Solution
The fourth proportional to 766,641.70, 1,057,972.50 and 422,489.98 is: 583,040.00
Step by Step Solution
- Step 1: Write the proportion equation
766,641.70 : 1,057,972.50 = 422,489.98 : x - Step 2: Convert to fraction form
766,641.70/1,057,972.50 = 422,489.98/x - Step 3: Cross multiply
766,641.70x = 1,057,972.50 × 422,489.98 - Step 4: Simplify right side
766,641.70x = 446,982,780,365.55 - Step 5: Solve for x
x = 446,982,780,365.55/766,641.70 - Step 6: Final answer
x = 583,040.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.