Finding the Fourth Proportional to 389,007.90, 536,310.99 and 291,798.54
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Solution
The fourth proportional to 389,007.90, 536,310.99 and 291,798.54 is: 402,291.99
Step by Step Solution
- Step 1: Write the proportion equation
389,007.90 : 536,310.99 = 291,798.54 : x - Step 2: Convert to fraction form
389,007.90/536,310.99 = 291,798.54/x - Step 3: Cross multiply
389,007.90x = 536,310.99 × 291,798.54 - Step 4: Simplify right side
389,007.90x = 156,494,763,867.96 - Step 5: Solve for x
x = 156,494,763,867.96/389,007.90 - Step 6: Final answer
x = 402,291.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.