Finding the Fourth Proportional to 1,019,695.99, 1,407,189.88 and 554,554.28
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Solution
The fourth proportional to 1,019,695.99, 1,407,189.88 and 554,554.28 is: 765,290.03
Step by Step Solution
- Step 1: Write the proportion equation
1,019,695.99 : 1,407,189.88 = 554,554.28 : x - Step 2: Convert to fraction form
1,019,695.99/1,407,189.88 = 554,554.28/x - Step 3: Cross multiply
1,019,695.99x = 1,407,189.88 × 554,554.28 - Step 4: Simplify right side
1,019,695.99x = 780,363,170,726.69 - Step 5: Solve for x
x = 780,363,170,726.69/1,019,695.99 - Step 6: Final answer
x = 765,290.03
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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.