Finding the Fourth Proportional to 839,793.08, 1,260,417.54 and 440,715.80
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Solution
The fourth proportional to 839,793.08, 1,260,417.54 and 440,715.80 is: 661,455.71
Step by Step Solution
- Step 1: Write the proportion equation
839,793.08 : 1,260,417.54 = 440,715.80 : x - Step 2: Convert to fraction form
839,793.08/1,260,417.54 = 440,715.80/x - Step 3: Cross multiply
839,793.08x = 1,260,417.54 × 440,715.80 - Step 4: Simplify right side
839,793.08x = 555,485,924,475.13 - Step 5: Solve for x
x = 555,485,924,475.13/839,793.08 - Step 6: Final answer
x = 661,455.71
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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.