Finding the Fourth Proportional to 706,622.48, 974,817.36 and 419,979.68
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Solution
The fourth proportional to 706,622.48, 974,817.36 and 419,979.68 is: 579,380.78
Step by Step Solution
- Step 1: Write the proportion equation
706,622.48 : 974,817.36 = 419,979.68 : x - Step 2: Convert to fraction form
706,622.48/974,817.36 = 419,979.68/x - Step 3: Cross multiply
706,622.48x = 974,817.36 × 419,979.68 - Step 4: Simplify right side
706,622.48x = 409,403,482,911.25 - Step 5: Solve for x
x = 409,403,482,911.25/706,622.48 - Step 6: Final answer
x = 579,380.78
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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.