Finding the Fourth Proportional to 455,189.28, 682,730.08 and 286,210.56
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Solution
The fourth proportional to 455,189.28, 682,730.08 and 286,210.56 is: 429,281.99
Step by Step Solution
- Step 1: Write the proportion equation
455,189.28 : 682,730.08 = 286,210.56 : x - Step 2: Convert to fraction form
455,189.28/682,730.08 = 286,210.56/x - Step 3: Cross multiply
455,189.28x = 682,730.08 × 286,210.56 - Step 4: Simplify right side
455,189.28x = 195,404,558,525.65 - Step 5: Solve for x
x = 195,404,558,525.65/455,189.28 - Step 6: Final answer
x = 429,281.99
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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.