Finding the Fourth Proportional to 783,507.74, 1,081,464.90 and 461,404.68
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Solution
The fourth proportional to 783,507.74, 1,081,464.90 and 461,404.68 is: 636,870.50
Step by Step Solution
- Step 1: Write the proportion equation
783,507.74 : 1,081,464.90 = 461,404.68 : x - Step 2: Convert to fraction form
783,507.74/1,081,464.90 = 461,404.68/x - Step 3: Cross multiply
783,507.74x = 1,081,464.90 × 461,404.68 - Step 4: Simplify right side
783,507.74x = 498,992,966,115.73 - Step 5: Solve for x
x = 498,992,966,115.73/783,507.74 - Step 6: Final answer
x = 636,870.50
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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.