Finding the Fourth Proportional to 619,246.80, 854,639.64 and 364,621.68
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Solution
The fourth proportional to 619,246.80, 854,639.64 and 364,621.68 is: 503,224.47
Step by Step Solution
- Step 1: Write the proportion equation
619,246.80 : 854,639.64 = 364,621.68 : x - Step 2: Convert to fraction form
619,246.80/854,639.64 = 364,621.68/x - Step 3: Cross multiply
619,246.80x = 854,639.64 × 364,621.68 - Step 4: Simplify right side
619,246.80x = 311,620,141,331.40 - Step 5: Solve for x
x = 311,620,141,331.40/619,246.80 - Step 6: Final answer
x = 503,224.47
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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.