Finding the Fourth Proportional to 621,813.78, 932,720.70 and 201,089.70
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Solution
The fourth proportional to 621,813.78, 932,720.70 and 201,089.70 is: 301,634.56
Step by Step Solution
- Step 1: Write the proportion equation
621,813.78 : 932,720.70 = 201,089.70 : x - Step 2: Convert to fraction form
621,813.78/932,720.70 = 201,089.70/x - Step 3: Cross multiply
621,813.78x = 932,720.70 × 201,089.70 - Step 4: Simplify right side
621,813.78x = 187,560,525,746.79 - Step 5: Solve for x
x = 187,560,525,746.79/621,813.78 - Step 6: Final answer
x = 301,634.56
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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.