Finding the Fourth Proportional to 427,027.80, 640,740.96 and 190,345.80
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Solution
The fourth proportional to 427,027.80, 640,740.96 and 190,345.80 is: 285,607.52
Step by Step Solution
- Step 1: Write the proportion equation
427,027.80 : 640,740.96 = 190,345.80 : x - Step 2: Convert to fraction form
427,027.80/640,740.96 = 190,345.80/x - Step 3: Cross multiply
427,027.80x = 640,740.96 × 190,345.80 - Step 4: Simplify right side
427,027.80x = 121,962,350,623.97 - Step 5: Solve for x
x = 121,962,350,623.97/427,027.80 - Step 6: Final answer
x = 285,607.52
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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.