Finding the Fourth Proportional to 2,128,517.60, 2,936,967.52 and 1,257,494.12
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Solution
The fourth proportional to 2,128,517.60, 2,936,967.52 and 1,257,494.12 is: 1,735,113.39
Step by Step Solution
- Step 1: Write the proportion equation
2,128,517.60 : 2,936,967.52 = 1,257,494.12 : x - Step 2: Convert to fraction form
2,128,517.60/2,936,967.52 = 1,257,494.12/x - Step 3: Cross multiply
2,128,517.60x = 2,936,967.52 × 1,257,494.12 - Step 4: Simplify right side
2,128,517.60x = 3,693,219,387,030.98 - Step 5: Solve for x
x = 3,693,219,387,030.98/2,128,517.60 - Step 6: Final answer
x = 1,735,113.39
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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.