Finding the Fourth Proportional to 2,043,435.60, 2,819,830.32 and 1,125,486.09
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Solution
The fourth proportional to 2,043,435.60, 2,819,830.32 and 1,125,486.09 is: 1,553,109.77
Step by Step Solution
- Step 1: Write the proportion equation
2,043,435.60 : 2,819,830.32 = 1,125,486.09 : x - Step 2: Convert to fraction form
2,043,435.60/2,819,830.32 = 1,125,486.09/x - Step 3: Cross multiply
2,043,435.60x = 2,819,830.32 × 1,125,486.09 - Step 4: Simplify right side
2,043,435.60x = 3,173,679,801,320.25 - Step 5: Solve for x
x = 3,173,679,801,320.25/2,043,435.60 - Step 6: Final answer
x = 1,553,109.77
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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.