Finding the Fourth Proportional to 915,723.44, 1,263,698.36 and 513,315.44
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Solution
The fourth proportional to 915,723.44, 1,263,698.36 and 513,315.44 is: 708,375.31
Step by Step Solution
- Step 1: Write the proportion equation
915,723.44 : 1,263,698.36 = 513,315.44 : x - Step 2: Convert to fraction form
915,723.44/1,263,698.36 = 513,315.44/x - Step 3: Cross multiply
915,723.44x = 1,263,698.36 × 513,315.44 - Step 4: Simplify right side
915,723.44x = 648,675,879,690.68 - Step 5: Solve for x
x = 648,675,879,690.68/915,723.44 - Step 6: Final answer
x = 708,375.31
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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.