Finding the Fourth Proportional to 3,230,569.88, 4,458,215.70 and 1,780,317.26
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Solution
The fourth proportional to 3,230,569.88, 4,458,215.70 and 1,780,317.26 is: 2,456,853.95
Step by Step Solution
- Step 1: Write the proportion equation
3,230,569.88 : 4,458,215.70 = 1,780,317.26 : x - Step 2: Convert to fraction form
3,230,569.88/4,458,215.70 = 1,780,317.26/x - Step 3: Cross multiply
3,230,569.88x = 4,458,215.70 × 1,780,317.26 - Step 4: Simplify right side
3,230,569.88x = 7,937,038,359,512.98 - Step 5: Solve for x
x = 7,937,038,359,512.98/3,230,569.88 - Step 6: Final answer
x = 2,456,853.95
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1.5x scale
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.