Finding the Fourth Proportional to 1,278,726.71, 1,765,307.08 and 934,175.79
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Solution
The fourth proportional to 1,278,726.71, 1,765,307.08 and 934,175.79 is: 1,289,647.84
Step by Step Solution
- Step 1: Write the proportion equation
1,278,726.71 : 1,765,307.08 = 934,175.79 : x - Step 2: Convert to fraction form
1,278,726.71/1,765,307.08 = 934,175.79/x - Step 3: Cross multiply
1,278,726.71x = 1,765,307.08 × 934,175.79 - Step 4: Simplify right side
1,278,726.71x = 1,649,107,137,219.31 - Step 5: Solve for x
x = 1,649,107,137,219.31/1,278,726.71 - Step 6: Final answer
x = 1,289,647.84
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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.