Finding the Fourth Proportional to 527,210.99, 727,577.64 and 309,429.09
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Solution
The fourth proportional to 527,210.99, 727,577.64 and 309,429.09 is: 427,027.69
Step by Step Solution
- Step 1: Write the proportion equation
527,210.99 : 727,577.64 = 309,429.09 : x - Step 2: Convert to fraction form
527,210.99/727,577.64 = 309,429.09/x - Step 3: Cross multiply
527,210.99x = 727,577.64 × 309,429.09 - Step 4: Simplify right side
527,210.99x = 225,133,687,049.55 - Step 5: Solve for x
x = 225,133,687,049.55/527,210.99 - Step 6: Final answer
x = 427,027.69
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1.5x scale
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.