Finding the Fourth Proportional to 572,378.61, 789,842.97 and 317,709.75
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Solution
The fourth proportional to 572,378.61, 789,842.97 and 317,709.75 is: 438,417.52
Step by Step Solution
- Step 1: Write the proportion equation
572,378.61 : 789,842.97 = 317,709.75 : x - Step 2: Convert to fraction form
572,378.61/789,842.97 = 317,709.75/x - Step 3: Cross multiply
572,378.61x = 789,842.97 × 317,709.75 - Step 4: Simplify right side
572,378.61x = 250,940,812,537.96 - Step 5: Solve for x
x = 250,940,812,537.96/572,378.61 - Step 6: Final answer
x = 438,417.52
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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.