Finding the Fourth Proportional to 1,988,658.99, 2,980,674.81 and 1,136,328.15
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Solution
The fourth proportional to 1,988,658.99, 2,980,674.81 and 1,136,328.15 is: 1,703,170.18
Step by Step Solution
- Step 1: Write the proportion equation
1,988,658.99 : 2,980,674.81 = 1,136,328.15 : x - Step 2: Convert to fraction form
1,988,658.99/2,980,674.81 = 1,136,328.15/x - Step 3: Cross multiply
1,988,658.99x = 2,980,674.81 × 1,136,328.15 - Step 4: Simplify right side
1,988,658.99x = 3,387,024,692,598.90 - Step 5: Solve for x
x = 3,387,024,692,598.90/1,988,658.99 - Step 6: Final answer
x = 1,703,170.18
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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.