Finding the Fourth Proportional to 442,531.74, 663,780.53 and 126,988.65
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Solution
The fourth proportional to 442,531.74, 663,780.53 and 126,988.65 is: 190,478.07
Step by Step Solution
- Step 1: Write the proportion equation
442,531.74 : 663,780.53 = 126,988.65 : x - Step 2: Convert to fraction form
442,531.74/663,780.53 = 126,988.65/x - Step 3: Cross multiply
442,531.74x = 663,780.53 × 126,988.65 - Step 4: Simplify right side
442,531.74x = 84,292,592,766.04 - Step 5: Solve for x
x = 84,292,592,766.04/442,531.74 - Step 6: Final answer
x = 190,478.07
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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.