Finding the Fourth Proportional to 840,739.74, 1,261,074.33 and 391,306.02
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Solution
The fourth proportional to 840,739.74, 1,261,074.33 and 391,306.02 is: 586,942.61
Step by Step Solution
- Step 1: Write the proportion equation
840,739.74 : 1,261,074.33 = 391,306.02 : x - Step 2: Convert to fraction form
840,739.74/1,261,074.33 = 391,306.02/x - Step 3: Cross multiply
840,739.74x = 1,261,074.33 × 391,306.02 - Step 4: Simplify right side
840,739.74x = 493,465,976,996.47 - Step 5: Solve for x
x = 493,465,976,996.47/840,739.74 - Step 6: Final answer
x = 586,942.61
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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.