Finding the Fourth Proportional to 904,913.76, 1,355,303.52 and 431,932.08
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Solution
The fourth proportional to 904,913.76, 1,355,303.52 and 431,932.08 is: 646,911.45
Step by Step Solution
- Step 1: Write the proportion equation
904,913.76 : 1,355,303.52 = 431,932.08 : x - Step 2: Convert to fraction form
904,913.76/1,355,303.52 = 431,932.08/x - Step 3: Cross multiply
904,913.76x = 1,355,303.52 × 431,932.08 - Step 4: Simplify right side
904,913.76x = 585,399,068,424.92 - Step 5: Solve for x
x = 585,399,068,424.92/904,913.76 - Step 6: Final answer
x = 646,911.45
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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.