Finding the Fourth Proportional to 990,435.57, 1,486,160.01 and 471,698.07
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Solution
The fourth proportional to 990,435.57, 1,486,160.01 and 471,698.07 is: 707,788.40
Step by Step Solution
- Step 1: Write the proportion equation
990,435.57 : 1,486,160.01 = 471,698.07 : x - Step 2: Convert to fraction form
990,435.57/1,486,160.01 = 471,698.07/x - Step 3: Cross multiply
990,435.57x = 1,486,160.01 × 471,698.07 - Step 4: Simplify right side
990,435.57x = 701,018,808,428.18 - Step 5: Solve for x
x = 701,018,808,428.18/990,435.57 - Step 6: Final answer
x = 707,788.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.