Finding the Fourth Proportional to 1,190,823.15, 1,643,343.84 and 646,958.82
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Solution
The fourth proportional to 1,190,823.15, 1,643,343.84 and 646,958.82 is: 892,807.46
Step by Step Solution
- Step 1: Write the proportion equation
1,190,823.15 : 1,643,343.84 = 646,958.82 : x - Step 2: Convert to fraction form
1,190,823.15/1,643,343.84 = 646,958.82/x - Step 3: Cross multiply
1,190,823.15x = 1,643,343.84 × 646,958.82 - Step 4: Simplify right side
1,190,823.15x = 1,063,175,791,580.67 - Step 5: Solve for x
x = 1,063,175,791,580.67/1,190,823.15 - Step 6: Final answer
x = 892,807.46
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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.