Finding the Fourth Proportional to 5,098,687.36, 7,647,979.20 and 1,312,155.52
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Solution
The fourth proportional to 5,098,687.36, 7,647,979.20 and 1,312,155.52 is: 1,968,219.94
Step by Step Solution
- Step 1: Write the proportion equation
5,098,687.36 : 7,647,979.20 = 1,312,155.52 : x - Step 2: Convert to fraction form
5,098,687.36/7,647,979.20 = 1,312,155.52/x - Step 3: Cross multiply
5,098,687.36x = 7,647,979.20 × 1,312,155.52 - Step 4: Simplify right side
5,098,687.36x = 10,035,338,124,125.18 - Step 5: Solve for x
x = 10,035,338,124,125.18/5,098,687.36 - Step 6: Final answer
x = 1,968,219.94
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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.