Finding the Fourth Proportional to 518,619.08, 715,693.26 and 280,155.08
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Solution
The fourth proportional to 518,619.08, 715,693.26 and 280,155.08 is: 386,613.43
Step by Step Solution
- Step 1: Write the proportion equation
518,619.08 : 715,693.26 = 280,155.08 : x - Step 2: Convert to fraction form
518,619.08/715,693.26 = 280,155.08/x - Step 3: Cross multiply
518,619.08x = 715,693.26 × 280,155.08 - Step 4: Simplify right side
518,619.08x = 200,505,102,510.76 - Step 5: Solve for x
x = 200,505,102,510.76/518,619.08 - Step 6: Final answer
x = 386,613.43
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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.