Finding the Fourth Proportional to 1,491,565.62, 2,058,263.55 and 879,578.01
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Solution
The fourth proportional to 1,491,565.62, 2,058,263.55 and 879,578.01 is: 1,213,760.45
Step by Step Solution
- Step 1: Write the proportion equation
1,491,565.62 : 2,058,263.55 = 879,578.01 : x - Step 2: Convert to fraction form
1,491,565.62/2,058,263.55 = 879,578.01/x - Step 3: Cross multiply
1,491,565.62x = 2,058,263.55 × 879,578.01 - Step 4: Simplify right side
1,491,565.62x = 1,810,403,357,364.54 - Step 5: Solve for x
x = 1,810,403,357,364.54/1,491,565.62 - Step 6: Final answer
x = 1,213,760.45
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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.