Finding the Fourth Proportional to 427,603.60, 641,207.72 and 240,615.08
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Solution
The fourth proportional to 427,603.60, 641,207.72 and 240,615.08 is: 360,811.38
Step by Step Solution
- Step 1: Write the proportion equation
427,603.60 : 641,207.72 = 240,615.08 : x - Step 2: Convert to fraction form
427,603.60/641,207.72 = 240,615.08/x - Step 3: Cross multiply
427,603.60x = 641,207.72 × 240,615.08 - Step 4: Simplify right side
427,603.60x = 154,284,246,844.42 - Step 5: Solve for x
x = 154,284,246,844.42/427,603.60 - Step 6: Final answer
x = 360,811.38
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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.