Finding the Fourth Proportional to 1,190,824.92, 1,643,356.98 and 646,971.48
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Solution
The fourth proportional to 1,190,824.92, 1,643,356.98 and 646,971.48 is: 892,830.74
Step by Step Solution
- Step 1: Write the proportion equation
1,190,824.92 : 1,643,356.98 = 646,971.48 : x - Step 2: Convert to fraction form
1,190,824.92/1,643,356.98 = 646,971.48/x - Step 3: Cross multiply
1,190,824.92x = 1,643,356.98 × 646,971.48 - Step 4: Simplify right side
1,190,824.92x = 1,063,205,097,518.93 - Step 5: Solve for x
x = 1,063,205,097,518.93/1,190,824.92 - Step 6: Final answer
x = 892,830.74
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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.