Finding the Fourth Proportional to 522,864.80, 783,130.80 and 429,552.80
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Solution
The fourth proportional to 522,864.80, 783,130.80 and 429,552.80 is: 643,370.96
Step by Step Solution
- Step 1: Write the proportion equation
522,864.80 : 783,130.80 = 429,552.80 : x - Step 2: Convert to fraction form
522,864.80/783,130.80 = 429,552.80/x - Step 3: Cross multiply
522,864.80x = 783,130.80 × 429,552.80 - Step 4: Simplify right side
522,864.80x = 336,396,027,906.24 - Step 5: Solve for x
x = 336,396,027,906.24/522,864.80 - Step 6: Final answer
x = 643,370.96
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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.