Finding the Fourth Proportional to 2,657,709.60, 3,986,564.40 and 2,641,963.20
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Solution
The fourth proportional to 2,657,709.60, 3,986,564.40 and 2,641,963.20 is: 3,962,944.80
Step by Step Solution
- Step 1: Write the proportion equation
2,657,709.60 : 3,986,564.40 = 2,641,963.20 : x - Step 2: Convert to fraction form
2,657,709.60/3,986,564.40 = 2,641,963.20/x - Step 3: Cross multiply
2,657,709.60x = 3,986,564.40 × 2,641,963.20 - Step 4: Simplify right side
2,657,709.60x = 10,532,356,439,230.08 - Step 5: Solve for x
x = 10,532,356,439,230.08/2,657,709.60 - Step 6: Final answer
x = 3,962,944.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.