Finding the Fourth Proportional to 660,483.38, 911,746.08 and 445,914.08
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Solution
The fourth proportional to 660,483.38, 911,746.08 and 445,914.08 is: 615,549.80
Step by Step Solution
- Step 1: Write the proportion equation
660,483.38 : 911,746.08 = 445,914.08 : x - Step 2: Convert to fraction form
660,483.38/911,746.08 = 445,914.08/x - Step 3: Cross multiply
660,483.38x = 911,746.08 × 445,914.08 - Step 4: Simplify right side
660,483.38x = 406,560,414,456.81 - Step 5: Solve for x
x = 406,560,414,456.81/660,483.38 - Step 6: Final answer
x = 615,549.80
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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.