Finding the Fourth Proportional to 611,566.20, 917,349.30 and 442,729.80
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Solution
The fourth proportional to 611,566.20, 917,349.30 and 442,729.80 is: 664,094.70
Step by Step Solution
- Step 1: Write the proportion equation
611,566.20 : 917,349.30 = 442,729.80 : x - Step 2: Convert to fraction form
611,566.20/917,349.30 = 442,729.80/x - Step 3: Cross multiply
611,566.20x = 917,349.30 × 442,729.80 - Step 4: Simplify right side
611,566.20x = 406,137,872,119.14 - Step 5: Solve for x
x = 406,137,872,119.14/611,566.20 - Step 6: Final answer
x = 664,094.70
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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.