Finding the Fourth Proportional to 1,201,121.80, 1,657,384.66 and 717,584.52
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Solution
The fourth proportional to 1,201,121.80, 1,657,384.66 and 717,584.52 is: 990,169.00
Step by Step Solution
- Step 1: Write the proportion equation
1,201,121.80 : 1,657,384.66 = 717,584.52 : x - Step 2: Convert to fraction form
1,201,121.80/1,657,384.66 = 717,584.52/x - Step 3: Cross multiply
1,201,121.80x = 1,657,384.66 × 717,584.52 - Step 4: Simplify right side
1,201,121.80x = 1,189,313,575,701.46 - Step 5: Solve for x
x = 1,189,313,575,701.46/1,201,121.80 - Step 6: Final answer
x = 990,169.00
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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.