Finding the Fourth Proportional to 1,989,121.02, 2,983,659.57 and 1,190,625.45
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Solution
The fourth proportional to 1,989,121.02, 2,983,659.57 and 1,190,625.45 is: 1,785,925.03
Step by Step Solution
- Step 1: Write the proportion equation
1,989,121.02 : 2,983,659.57 = 1,190,625.45 : x - Step 2: Convert to fraction form
1,989,121.02/2,983,659.57 = 1,190,625.45/x - Step 3: Cross multiply
1,989,121.02x = 2,983,659.57 × 1,190,625.45 - Step 4: Simplify right side
1,989,121.02x = 3,552,421,018,178.06 - Step 5: Solve for x
x = 3,552,421,018,178.06/1,989,121.02 - Step 6: Final answer
x = 1,785,925.03
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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.