Finding the Fourth Proportional to 783,509.74, 1,081,467.66 and 461,406.68
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Solution
The fourth proportional to 783,509.74, 1,081,467.66 and 461,406.68 is: 636,873.26
Step by Step Solution
- Step 1: Write the proportion equation
783,509.74 : 1,081,467.66 = 461,406.68 : x - Step 2: Convert to fraction form
783,509.74/1,081,467.66 = 461,406.68/x - Step 3: Cross multiply
783,509.74x = 1,081,467.66 × 461,406.68 - Step 4: Simplify right side
783,509.74x = 498,996,402,527.97 - Step 5: Solve for x
x = 498,996,402,527.97/783,509.74 - Step 6: Final answer
x = 636,873.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.