Finding the Fourth Proportional to 1,349,853.69, 1,863,267.21 and 777,122.13
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Solution
The fourth proportional to 1,349,853.69, 1,863,267.21 and 777,122.13 is: 1,072,698.61
Step by Step Solution
- Step 1: Write the proportion equation
1,349,853.69 : 1,863,267.21 = 777,122.13 : x - Step 2: Convert to fraction form
1,349,853.69/1,863,267.21 = 777,122.13/x - Step 3: Cross multiply
1,349,853.69x = 1,863,267.21 × 777,122.13 - Step 4: Simplify right side
1,349,853.69x = 1,447,986,182,994.36 - Step 5: Solve for x
x = 1,447,986,182,994.36/1,349,853.69 - Step 6: Final answer
x = 1,072,698.61
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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.