Finding the Fourth Proportional to 1,078,770.81, 1,489,263.36 and 788,055.93
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Solution
The fourth proportional to 1,078,770.81, 1,489,263.36 and 788,055.93 is: 1,087,926.02
Step by Step Solution
- Step 1: Write the proportion equation
1,078,770.81 : 1,489,263.36 = 788,055.93 : x - Step 2: Convert to fraction form
1,078,770.81/1,489,263.36 = 788,055.93/x - Step 3: Cross multiply
1,078,770.81x = 1,489,263.36 × 788,055.93 - Step 4: Simplify right side
1,078,770.81x = 1,173,622,823,932.74 - Step 5: Solve for x
x = 1,173,622,823,932.74/1,078,770.81 - Step 6: Final answer
x = 1,087,926.02
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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.