Finding the Fourth Proportional to 990,396.52, 1,485,025.08 and 528,204.36
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Solution
The fourth proportional to 990,396.52, 1,485,025.08 and 528,204.36 is: 792,002.70
Step by Step Solution
- Step 1: Write the proportion equation
990,396.52 : 1,485,025.08 = 528,204.36 : x - Step 2: Convert to fraction form
990,396.52/1,485,025.08 = 528,204.36/x - Step 3: Cross multiply
990,396.52x = 1,485,025.08 × 528,204.36 - Step 4: Simplify right side
990,396.52x = 784,396,721,965.35 - Step 5: Solve for x
x = 784,396,721,965.35/990,396.52 - Step 6: Final answer
x = 792,002.70
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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.