Finding the Fourth Proportional to 872,032.46, 1,306,720.08 and 445,551.08
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Solution
The fourth proportional to 872,032.46, 1,306,720.08 and 445,551.08 is: 667,647.78
Step by Step Solution
- Step 1: Write the proportion equation
872,032.46 : 1,306,720.08 = 445,551.08 : x - Step 2: Convert to fraction form
872,032.46/1,306,720.08 = 445,551.08/x - Step 3: Cross multiply
872,032.46x = 1,306,720.08 × 445,551.08 - Step 4: Simplify right side
872,032.46x = 582,210,536,368.09 - Step 5: Solve for x
x = 582,210,536,368.09/872,032.46 - Step 6: Final answer
x = 667,647.78
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1.5x scale
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.