Finding the Fourth Proportional to 660,487.38, 911,751.60 and 445,918.08
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Solution
The fourth proportional to 660,487.38, 911,751.60 and 445,918.08 is: 615,555.32
Step by Step Solution
- Step 1: Write the proportion equation
660,487.38 : 911,751.60 = 445,918.08 : x - Step 2: Convert to fraction form
660,487.38/911,751.60 = 445,918.08/x - Step 3: Cross multiply
660,487.38x = 911,751.60 × 445,918.08 - Step 4: Simplify right side
660,487.38x = 406,566,522,908.93 - Step 5: Solve for x
x = 406,566,522,908.93/660,487.38 - Step 6: Final answer
x = 615,555.32
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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.