Finding the Fourth Proportional to 3,687,990.08, 5,528,829.78 and 1,415,145.53
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Solution
The fourth proportional to 3,687,990.08, 5,528,829.78 and 1,415,145.53 is: 2,121,507.54
Step by Step Solution
- Step 1: Write the proportion equation
3,687,990.08 : 5,528,829.78 = 1,415,145.53 : x - Step 2: Convert to fraction form
3,687,990.08/5,528,829.78 = 1,415,145.53/x - Step 3: Cross multiply
3,687,990.08x = 5,528,829.78 × 1,415,145.53 - Step 4: Simplify right side
3,687,990.08x = 7,824,098,749,297.88 - Step 5: Solve for x
x = 7,824,098,749,297.88/3,687,990.08 - Step 6: Final answer
x = 2,121,507.54
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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.