Finding the Fourth Proportional to 493,775.14, 681,423.69 and 278,924.26
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Solution
The fourth proportional to 493,775.14, 681,423.69 and 278,924.26 is: 384,923.39
Step by Step Solution
- Step 1: Write the proportion equation
493,775.14 : 681,423.69 = 278,924.26 : x - Step 2: Convert to fraction form
493,775.14/681,423.69 = 278,924.26/x - Step 3: Cross multiply
493,775.14x = 681,423.69 × 278,924.26 - Step 4: Simplify right side
493,775.14x = 190,065,598,479.72 - Step 5: Solve for x
x = 190,065,598,479.72/493,775.14 - Step 6: Final answer
x = 384,923.39
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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.