Finding the Fourth Proportional to 2,989,813.80, 4,486,120.38 and 1,306,698.60
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Solution
The fourth proportional to 2,989,813.80, 4,486,120.38 and 1,306,698.60 is: 1,960,659.63
Step by Step Solution
- Step 1: Write the proportion equation
2,989,813.80 : 4,486,120.38 = 1,306,698.60 : x - Step 2: Convert to fraction form
2,989,813.80/4,486,120.38 = 1,306,698.60/x - Step 3: Cross multiply
2,989,813.80x = 4,486,120.38 × 1,306,698.60 - Step 4: Simplify right side
2,989,813.80x = 5,862,007,219,977.47 - Step 5: Solve for x
x = 5,862,007,219,977.47/2,989,813.80 - Step 6: Final answer
x = 1,960,659.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.