Finding the Fourth Proportional to 405,770.68, 559,980.12 and 224,479.54
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Solution
The fourth proportional to 405,770.68, 559,980.12 and 224,479.54 is: 309,790.94
Step by Step Solution
- Step 1: Write the proportion equation
405,770.68 : 559,980.12 = 224,479.54 : x - Step 2: Convert to fraction form
405,770.68/559,980.12 = 224,479.54/x - Step 3: Cross multiply
405,770.68x = 559,980.12 × 224,479.54 - Step 4: Simplify right side
405,770.68x = 125,704,079,746.75 - Step 5: Solve for x
x = 125,704,079,746.75/405,770.68 - Step 6: Final answer
x = 309,790.94
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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.