Finding the Fourth Proportional to 2,911,915.09, 4,018,266.30 and 1,605,109.98
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Solution
The fourth proportional to 2,911,915.09, 4,018,266.30 and 1,605,109.98 is: 2,214,954.47
Step by Step Solution
- Step 1: Write the proportion equation
2,911,915.09 : 4,018,266.30 = 1,605,109.98 : x - Step 2: Convert to fraction form
2,911,915.09/4,018,266.30 = 1,605,109.98/x - Step 3: Cross multiply
2,911,915.09x = 4,018,266.30 × 1,605,109.98 - Step 4: Simplify right side
2,911,915.09x = 6,449,759,340,427.67 - Step 5: Solve for x
x = 6,449,759,340,427.67/2,911,915.09 - Step 6: Final answer
x = 2,214,954.47
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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.