Finding the Fourth Proportional to 691,106.47, 1,036,800.66 and 391,720.75
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Solution
The fourth proportional to 691,106.47, 1,036,800.66 and 391,720.75 is: 587,661.02
Step by Step Solution
- Step 1: Write the proportion equation
691,106.47 : 1,036,800.66 = 391,720.75 : x - Step 2: Convert to fraction form
691,106.47/1,036,800.66 = 391,720.75/x - Step 3: Cross multiply
691,106.47x = 1,036,800.66 × 391,720.75 - Step 4: Simplify right side
691,106.47x = 406,136,332,135.70 - Step 5: Solve for x
x = 406,136,332,135.70/691,106.47 - Step 6: Final answer
x = 587,661.02
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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.