Finding the Fourth Proportional to 442,901.10, 664,351.65 and 431,237.10
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Solution
The fourth proportional to 442,901.10, 664,351.65 and 431,237.10 is: 646,855.65
Step by Step Solution
- Step 1: Write the proportion equation
442,901.10 : 664,351.65 = 431,237.10 : x - Step 2: Convert to fraction form
442,901.10/664,351.65 = 431,237.10/x - Step 3: Cross multiply
442,901.10x = 664,351.65 × 431,237.10 - Step 4: Simplify right side
442,901.10x = 286,493,078,926.22 - Step 5: Solve for x
x = 286,493,078,926.22/442,901.10 - Step 6: Final answer
x = 646,855.65
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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.