Finding the Fourth Proportional to 630,793.05, 945,825.99 and 431,355.06
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Solution
The fourth proportional to 630,793.05, 945,825.99 and 431,355.06 is: 646,783.96
Step by Step Solution
- Step 1: Write the proportion equation
630,793.05 : 945,825.99 = 431,355.06 : x - Step 2: Convert to fraction form
630,793.05/945,825.99 = 431,355.06/x - Step 3: Cross multiply
630,793.05x = 945,825.99 × 431,355.06 - Step 4: Simplify right side
630,793.05x = 407,986,826,666.01 - Step 5: Solve for x
x = 407,986,826,666.01/630,793.05 - Step 6: Final answer
x = 646,783.96
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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.