Finding the Fourth Proportional to 1,266,351.12, 1,747,547.21 and 693,391.29
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Solution
The fourth proportional to 1,266,351.12, 1,747,547.21 and 693,391.29 is: 956,870.49
Step by Step Solution
- Step 1: Write the proportion equation
1,266,351.12 : 1,747,547.21 = 693,391.29 : x - Step 2: Convert to fraction form
1,266,351.12/1,747,547.21 = 693,391.29/x - Step 3: Cross multiply
1,266,351.12x = 1,747,547.21 × 693,391.29 - Step 4: Simplify right side
1,266,351.12x = 1,211,734,010,810.84 - Step 5: Solve for x
x = 1,211,734,010,810.84/1,266,351.12 - Step 6: Final answer
x = 956,870.49
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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.