Finding the Fourth Proportional to 1,214,639.16, 1,676,192.18 and 670,811.64
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Solution
The fourth proportional to 1,214,639.16, 1,676,192.18 and 670,811.64 is: 925,714.61
Step by Step Solution
- Step 1: Write the proportion equation
1,214,639.16 : 1,676,192.18 = 670,811.64 : x - Step 2: Convert to fraction form
1,214,639.16/1,676,192.18 = 670,811.64/x - Step 3: Cross multiply
1,214,639.16x = 1,676,192.18 × 670,811.64 - Step 4: Simplify right side
1,214,639.16x = 1,124,409,221,866.92 - Step 5: Solve for x
x = 1,124,409,221,866.92/1,214,639.16 - Step 6: Final answer
x = 925,714.61
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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.