Finding the Fourth Proportional to 442,574.10, 663,860.14 and 189,690.62
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Solution
The fourth proportional to 442,574.10, 663,860.14 and 189,690.62 is: 284,535.49
Step by Step Solution
- Step 1: Write the proportion equation
442,574.10 : 663,860.14 = 189,690.62 : x - Step 2: Convert to fraction form
442,574.10/663,860.14 = 189,690.62/x - Step 3: Cross multiply
442,574.10x = 663,860.14 × 189,690.62 - Step 4: Simplify right side
442,574.10x = 125,928,037,756.36 - Step 5: Solve for x
x = 125,928,037,756.36/442,574.10 - Step 6: Final answer
x = 284,535.49
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1.5x scale
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.