Finding the Fourth Proportional to 2,990,720.70, 4,486,737.15 and 1,475,129.70
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Solution
The fourth proportional to 2,990,720.70, 4,486,737.15 and 1,475,129.70 is: 2,213,018.16
Step by Step Solution
- Step 1: Write the proportion equation
2,990,720.70 : 4,486,737.15 = 1,475,129.70 : x - Step 2: Convert to fraction form
2,990,720.70/4,486,737.15 = 1,475,129.70/x - Step 3: Cross multiply
2,990,720.70x = 4,486,737.15 × 1,475,129.70 - Step 4: Simplify right side
2,990,720.70x = 6,618,519,226,058.36 - Step 5: Solve for x
x = 6,618,519,226,058.36/2,990,720.70 - Step 6: Final answer
x = 2,213,018.16
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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.