Finding the Fourth Proportional to 877,876.92, 1,211,430.24 and 551,358.60
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Solution
The fourth proportional to 877,876.92, 1,211,430.24 and 551,358.60 is: 760,849.80
Step by Step Solution
- Step 1: Write the proportion equation
877,876.92 : 1,211,430.24 = 551,358.60 : x - Step 2: Convert to fraction form
877,876.92/1,211,430.24 = 551,358.60/x - Step 3: Cross multiply
877,876.92x = 1,211,430.24 × 551,358.60 - Step 4: Simplify right side
877,876.92x = 667,932,481,124.06 - Step 5: Solve for x
x = 667,932,481,124.06/877,876.92 - Step 6: Final answer
x = 760,849.80
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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.