Finding the Fourth Proportional to 2,157,315.12, 3,234,971.52 and 1,259,015.40
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Solution
The fourth proportional to 2,157,315.12, 3,234,971.52 and 1,259,015.40 is: 1,887,938.82
Step by Step Solution
- Step 1: Write the proportion equation
2,157,315.12 : 3,234,971.52 = 1,259,015.40 : x - Step 2: Convert to fraction form
2,157,315.12/3,234,971.52 = 1,259,015.40/x - Step 3: Cross multiply
2,157,315.12x = 3,234,971.52 × 1,259,015.40 - Step 4: Simplify right side
2,157,315.12x = 4,072,878,962,241.41 - Step 5: Solve for x
x = 4,072,878,962,241.41/2,157,315.12 - Step 6: Final answer
x = 1,887,938.82
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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.