Finding the Fourth Proportional to 1,078,768.68, 1,489,260.43 and 788,053.81
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Solution
The fourth proportional to 1,078,768.68, 1,489,260.43 and 788,053.81 is: 1,087,923.09
Step by Step Solution
- Step 1: Write the proportion equation
1,078,768.68 : 1,489,260.43 = 788,053.81 : x - Step 2: Convert to fraction form
1,078,768.68/1,489,260.43 = 788,053.81/x - Step 3: Cross multiply
1,078,768.68x = 1,489,260.43 × 788,053.81 - Step 4: Simplify right side
1,078,768.68x = 1,173,617,355,943.74 - Step 5: Solve for x
x = 1,173,617,355,943.74/1,078,768.68 - Step 6: Final answer
x = 1,087,923.09
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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.