Finding the Fourth Proportional to 674,583.62, 1,011,587.40 and 390,470.31
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Solution
The fourth proportional to 674,583.62, 1,011,587.40 and 390,470.31 is: 585,538.75
Step by Step Solution
- Step 1: Write the proportion equation
674,583.62 : 1,011,587.40 = 390,470.31 : x - Step 2: Convert to fraction form
674,583.62/1,011,587.40 = 390,470.31/x - Step 3: Cross multiply
674,583.62x = 1,011,587.40 × 390,470.31 - Step 4: Simplify right side
674,583.62x = 394,994,845,670.09 - Step 5: Solve for x
x = 394,994,845,670.09/674,583.62 - Step 6: Final answer
x = 585,538.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.