Finding the Fourth Proportional to 1,189,335.12, 1,642,644.80 and 783,252.06
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Solution
The fourth proportional to 1,189,335.12, 1,642,644.80 and 783,252.06 is: 1,081,785.03
Step by Step Solution
- Step 1: Write the proportion equation
1,189,335.12 : 1,642,644.80 = 783,252.06 : x - Step 2: Convert to fraction form
1,189,335.12/1,642,644.80 = 783,252.06/x - Step 3: Cross multiply
1,189,335.12x = 1,642,644.80 × 783,252.06 - Step 4: Simplify right side
1,189,335.12x = 1,286,604,923,448.29 - Step 5: Solve for x
x = 1,286,604,923,448.29/1,189,335.12 - Step 6: Final answer
x = 1,081,785.03
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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.