Finding the Fourth Proportional to 1,965,287.13, 2,943,206.69 and 1,121,280.09
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Solution
The fourth proportional to 1,965,287.13, 2,943,206.69 and 1,121,280.09 is: 1,679,224.89
Step by Step Solution
- Step 1: Write the proportion equation
1,965,287.13 : 2,943,206.69 = 1,121,280.09 : x - Step 2: Convert to fraction form
1,965,287.13/2,943,206.69 = 1,121,280.09/x - Step 3: Cross multiply
1,965,287.13x = 2,943,206.69 × 1,121,280.09 - Step 4: Simplify right side
1,965,287.13x = 3,300,159,056,645.40 - Step 5: Solve for x
x = 3,300,159,056,645.40/1,965,287.13 - Step 6: Final answer
x = 1,679,224.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.