Finding the Fourth Proportional to 904,739.26, 1,355,041.74 and 431,756.80
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Solution
The fourth proportional to 904,739.26, 1,355,041.74 and 431,756.80 is: 646,648.72
Step by Step Solution
- Step 1: Write the proportion equation
904,739.26 : 1,355,041.74 = 431,756.80 : x - Step 2: Convert to fraction form
904,739.26/1,355,041.74 = 431,756.80/x - Step 3: Cross multiply
904,739.26x = 1,355,041.74 × 431,756.80 - Step 4: Simplify right side
904,739.26x = 585,048,485,528.83 - Step 5: Solve for x
x = 585,048,485,528.83/904,739.26 - Step 6: Final answer
x = 646,648.72
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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.