Finding the Fourth Proportional to 1,988,655.99, 2,980,670.31 and 1,136,325.14
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Solution
The fourth proportional to 1,988,655.99, 2,980,670.31 and 1,136,325.14 is: 1,703,165.66
Step by Step Solution
- Step 1: Write the proportion equation
1,988,655.99 : 2,980,670.31 = 1,136,325.14 : x - Step 2: Convert to fraction form
1,988,655.99/2,980,670.31 = 1,136,325.14/x - Step 3: Cross multiply
1,988,655.99x = 2,980,670.31 × 1,136,325.14 - Step 4: Simplify right side
1,988,655.99x = 3,387,010,592,401.24 - Step 5: Solve for x
x = 3,387,010,592,401.24/1,988,655.99 - Step 6: Final answer
x = 1,703,165.66
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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.