Finding the Fourth Proportional to 1,007,701.12, 1,390,563.75 and 554,992.12
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Solution
The fourth proportional to 1,007,701.12, 1,390,563.75 and 554,992.12 is: 765,853.99
Step by Step Solution
- Step 1: Write the proportion equation
1,007,701.12 : 1,390,563.75 = 554,992.12 : x - Step 2: Convert to fraction form
1,007,701.12/1,390,563.75 = 554,992.12/x - Step 3: Cross multiply
1,007,701.12x = 1,390,563.75 × 554,992.12 - Step 4: Simplify right side
1,007,701.12x = 771,751,923,607.65 - Step 5: Solve for x
x = 771,751,923,607.65/1,007,701.12 - Step 6: Final answer
x = 765,853.99
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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.